refactor(keys): rename `Keys` to `InMemoryKeys`
refactor(keys): impl above traits for `InMemoryKeys`
refactor(lightwallet): split methods between generic over keystore and
`InMemoryKeys` specific
style: formatting

feat(builder): impl `Builder` for zcash-primitive's Builder
feat(keystore): obtain associated builder for certain keystore
refactor: use new `Builder` trait

Modularize keystore functionality

feat(txbuilder): add `HsmTxProver` support

feat(keys:ledger): initial impl of `Builder` and `Keystore`

misc: add compute_taddr utility
misc: add some derives and remove some unnecessary code (spurious clones)

feat(ledger): add utility functions
feat(keystores): add enum to wrap keystore variants

refactor: use new `Keystores` enum API - WIP

refactor: use keystores instead of requiring in memory keystore where possible

feat(leger): `add_zaddr` and `add_taddr` with automatic path creation
refactor(lightwallet): provide defaults for some fields tin non-memory
keystore

feat(wallet): add support for more functionality with both keystores
refactor: specify if a clone of the keystore is necessary

…ght-cli into feat/hsm+cli

https://app.clickup.com/t/2x6mnaa

Integrate Ledger based keystore with lib and CLI

feat(ledger): device ""id""
refactor(keys:adapters): use `Self` instead of enum name
chore: bump wallet serialization version

refactor: adjust spendable notes based on ivk only
feat(keystores): method to retrieve all spendable ivks
refactor(wallet): initialize `Keystores` from file

refactor: don't force memory keys for lock/unlock encrypt/decrypt operations

refactor(data): use ivk in SaplingNoteData instead of extfvk,
refactor(data): also for SpendableNotes
refactor(sync): compute nullifier via keystore
refactor(sync): use ivk instead of extfvk
refactor(builder): use ivk instead of vk for adding sapling spends
misc: use `to_repr()` to compare ivks

Complete ledger integration

fix(build): use default fee (1000)

fix(ledger): missing txversion on build

Add support for TX v5 to Ledger