CHIA-595: Soft fork 5

[arvidn]

Purpose:

Introduce the Soft-fork 5 logic and testing infrastructure. Activate the banning of infinity G1 points with the soft-fork.
The keccak and base64 will most likely also be added to the soft fork in a later PR.

Current Behavior:

There is no soft-fork 5

New Behavior:

There is a soft-fork 5 at height 5940000 on mainnet and 1340000 on testnet11.
When this soft fork activates, infinity G1 public keys are not allowed on AGG_SIG_* conditions.

[coveralls-official]

Pull Request Test Coverage Report for Build 9219593833

Details

• 15 of 15 (100.0%) changed or added relevant lines in 4 files are covered.
• 25 unchanged lines in 10 files lost coverage.
• Overall coverage decreased (-0.002%) to 90.873%

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Files with Coverage Reduction	New Missed Lines	%
chia/full_node/full_node_api.py	1	81.0%
chia/wallet/wallet_node.py	1	89.08%
chia/_tests/core/full_node/test_transactions.py	1	99.11%
chia/daemon/client.py	1	73.94%
chia/_tests/core/util/test_file_keyring_synchronization.py	1	97.1%
chia/_tests/core/test_farmer_harvester_rpc.py	2	98.03%
chia/server/node_discovery.py	3	79.61%
chia/_tests/core/util/test_lockfile.py	5	88.66%
chia/introducer/introducer_api.py	5	78.26%
chia/introducer/introducer.py	5	78.26%

Totals
Change from base Build 9211882961:	-0.002%
Covered Lines:	99354
Relevant Lines:	109274

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💛 - Coveralls

[github-actions]

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[github-actions]

Conflicts have been resolved. A maintainer will review the pull request shortly.

[Rigidity]

lgtm

[wjblanke]

aok