backport parity storage limitation test

[ETeissonniere]

Backport paritytech/substrate#11699 so we can start monitoring our storage size.

Learning from the Parity Parachain Summit, it sounds like we need to start
limited our storage element sizes in order to keep our PoV size under control
and avoid having our parachain stop.

[ETeissonniere]

Ignored as it fails currently due to pallet-preimage (being refactored by parity as we speak). Example output:

❯ cargo test -p runtime-eden tests::check_pallet_storage_sizes -- --ignored
    Finished test [unoptimized + debuginfo] target(s) in 1.07s
     Running unittests src/lib.rs (target/debug/deps/runtime_eden-88b1e26f21a8b8bf)

running 1 test
test tests::check_pallet_storage_sizes ... FAILED

failures:

---- tests::check_pallet_storage_sizes stdout ----
|             Pallet             |            Storage             | Max Values |    Max Size     |
| ------------------------------ | ------------------------------ | ---------- | --------------- |
| Preimage                       | PreimageFor                    | None       | Some(4194340)   |
| AuraExt                        | Authorities                    | Some(1)    | Some(3200004)   |
| Aura                           | Authorities                    | Some(1)    | Some(3200004)   |
| Vesting                        | VestingSchedules               | None       | Some(2850)      |
| RandomnessCollectiveFlip       | RandomMaterial                 | Some(1)    | Some(2594)      |
| AllocationsOracles             | Members                        | Some(1)    | Some(1601)      |
| ValidatorsSet                  | Members                        | Some(1)    | Some(1601)      |
| TechnicalMembership            | Members                        | Some(1)    | Some(1601)      |
| Balances                       | Locks                          | None       | Some(1299)      |
| Authorship                     | Uncles                         | Some(1)    | Some(727)       |
| Uniques                        | Attribute                      | None       | Some(364)       |
| Uniques                        | Class                          | None       | Some(178)       |
| Uniques                        | Asset                          | None       | Some(122)       |
| Balances                       | Account                        | None       | Some(112)       |
| Uniques                        | InstanceMetadataOf             | None       | Some(108)       |
| Uniques                        | ClassMetadataOf                | None       | Some(88)        |
| Uniques                        | Account                        | None       | Some(88)        |
| Preimage                       | StatusFor                      | None       | Some(82)        |
| Uniques                        | ClassAccount                   | None       | Some(68)        |
| Uniques                        | OwnershipAcceptance            | None       | Some(52)        |
| Balances                       | Reserves                       | None       | Some(49)        |
| AllocationsOracles             | Prime                          | Some(1)    | Some(32)        |
| ValidatorsSet                  | Prime                          | Some(1)    | Some(32)        |
| Authorship                     | Author                         | Some(1)    | Some(32)        |
| TechnicalMembership            | Prime                          | Some(1)    | Some(32)        |
| Uniques                        | CollectionMaxSupply            | None       | Some(24)        |
| TransactionPayment             | NextFeeMultiplier              | Some(1)    | Some(16)        |
| Balances                       | TotalIssuance                  | Some(1)    | Some(16)        |
| Aura                           | CurrentSlot                    | Some(1)    | Some(8)         |
| Timestamp                      | Now                            | Some(1)    | Some(8)         |
| ParachainInfo                  | ParachainId                    | Some(1)    | Some(4)         |
| Vesting                        | CounterForVestingSchedules     | Some(1)    | Some(4)         |
| Allocations                    | StorageVersion                 | Some(1)    | Some(1)         |
| Poa                            | StorageVersion                 | Some(1)    | Some(1)         |
| Authorship                     | DidSetUncles                   | Some(1)    | Some(1)         |
| Vesting                        | StorageVersion                 | Some(1)    | Some(1)         |
| TransactionPayment             | StorageVersion                 | Some(1)    | Some(1)         |
| Balances                       | StorageVersion                 | Some(1)    | Some(1)         |
| Timestamp                      | DidUpdate                      | Some(1)    | Some(1)         |
| Multisig                       | Calls                          | None       | None            |
| Multisig                       | Multisigs                      | None       | None            |
| ParachainSystem                | CustomValidationHeadData       | Some(1)    | None            |
| ParachainSystem                | AuthorizedUpgrade              | Some(1)    | None            |
| ParachainSystem                | ReservedDmpWeightOverride      | Some(1)    | None            |
| ParachainSystem                | ReservedXcmpWeightOverride     | Some(1)    | None            |
| ParachainSystem                | AnnouncedHrmpMessagesPerCandidate | Some(1)    | None            |
| ParachainSystem                | PendingUpwardMessages          | Some(1)    | None            |
| ParachainSystem                | UpwardMessages                 | Some(1)    | None            |
| ParachainSystem                | HrmpOutboundMessages           | Some(1)    | None            |
| ParachainSystem                | HrmpWatermark                  | Some(1)    | None            |
| ParachainSystem                | ProcessedDownwardMessages      | Some(1)    | None            |
| ParachainSystem                | LastHrmpMqcHeads               | Some(1)    | None            |
| ParachainSystem                | LastDmqMqcHead                 | Some(1)    | None            |
| ParachainSystem                | HostConfiguration              | Some(1)    | None            |
| ParachainSystem                | RelevantMessagingState         | Some(1)    | None            |
| ParachainSystem                | RelayStateProof                | Some(1)    | None            |
| ParachainSystem                | UpgradeRestrictionSignal       | Some(1)    | None            |
| ParachainSystem                | LastRelayChainBlockNumber      | Some(1)    | None            |
| ParachainSystem                | DidSetValidationCode           | Some(1)    | None            |
| ParachainSystem                | ValidationData                 | Some(1)    | None            |
| ParachainSystem                | NewValidationCode              | Some(1)    | None            |
| ParachainSystem                | PendingValidationCode          | Some(1)    | None            |
| Session                        | KeyOwner                       | None       | None            |
| Session                        | NextKeys                       | None       | None            |
| Session                        | DisabledValidators             | Some(1)    | None            |
| Session                        | QueuedKeys                     | Some(1)    | None            |
| Session                        | QueuedChanged                  | Some(1)    | None            |
| Session                        | CurrentIndex                   | Some(1)    | None            |
| Session                        | Validators                     | Some(1)    | None            |
| TechnicalCommittee             | Prime                          | Some(1)    | None            |
| TechnicalCommittee             | Members                        | Some(1)    | None            |
| TechnicalCommittee             | ProposalCount                  | Some(1)    | None            |
| TechnicalCommittee             | Voting                         | None       | None            |
| TechnicalCommittee             | ProposalOf                     | None       | None            |
| TechnicalCommittee             | Proposals                      | Some(1)    | None            |
| Scheduler                      | Lookup                         | None       | None            |
| Scheduler                      | Agenda                         | None       | None            |
| System                         | ExecutionPhase                 | Some(1)    | None            |
| System                         | UpgradedToTripleRefCount       | Some(1)    | None            |
| System                         | UpgradedToU32RefCount          | Some(1)    | None            |
| System                         | LastRuntimeUpgrade             | Some(1)    | None            |
| System                         | EventTopics                    | None       | None            |
| System                         | EventCount                     | Some(1)    | None            |
| System                         | Events                         | Some(1)    | None            |
| System                         | Digest                         | Some(1)    | None            |
| System                         | ParentHash                     | Some(1)    | None            |
| System                         | Number                         | Some(1)    | None            |
| System                         | ExtrinsicData                  | None       | None            |
| System                         | BlockHash                      | None       | None            |
| System                         | AllExtrinsicsLen               | Some(1)    | None            |
| System                         | BlockWeight                    | Some(1)    | None            |
| System                         | ExtrinsicCount                 | Some(1)    | None            |
| System                         | Account                        | None       | None            |
thread 'tests::check_pallet_storage_sizes' panicked at '1 pallets have too big storage', runtimes/eden/src/lib.rs:420:9
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace


failures:
    tests::check_pallet_storage_sizes

test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 3 filtered out; finished in 0.01s

error: test failed, to rerun pass '-p runtime-eden --lib'

[codecov]

Codecov Report

Merging #655 (db3b46d) into master (0f00c7b) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #655   +/-   ##
=======================================
  Coverage   89.64%   89.64%           
=======================================
  Files          33       33           
  Lines        6169     6169           
=======================================
  Hits         5530     5530           
  Misses        639      639           

Impacted Files	Coverage Δ
runtimes/eden/src/lib.rs	4.39% <ø> (ø)

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