## Description
Closes: #9404
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For #10096
This PR introduces the updates to the ADR-038 spec for the transition to plugin-based streaming services. These updates reflect the implementation approach taken in https://github.com/i-norden/cosmos-sdk/pull/1 (will be rebased, retargeted, and reopened).
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## Description
+ fixing `x/bank/migrations/v44.migrateDenomMetadata` - we could potentially put a wrong data in a new key if the old keys have variable length.
+ linting the code
Putting in the same PR because i found the issue when running a linter.
Depends on: #10112
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## Description
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Hello 👋 this PR introduces the second stage of changes to support [ADR-038](https://github.com/cosmos/cosmos-sdk/pull/8012) state listening. This is rebased on top of the [first segment](https://github.com/cosmos/cosmos-sdk/pull/8551), which introduces the low level changes to the MultiStore and KVStore interfaces and implementations, the new WriteListener types, and the new listen.KVStore type.
In this segment we introduce the StreamingService interface, an implementation that writes out to files, and it's integration and configuration at the BaseApp level.
The idea was to have the first segment reviewed independently first but if people think it is easier/more time efficient to review both at the same time then we could start here.
Thanks!
This work is towards satisfying [ADR-038](https://github.com/cosmos/cosmos-sdk/blob/master/docs/architecture/adr-038-state-listening.md)
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* StoreKVPair protobuf message definition and generated go types
* store WriteListener
* update MultiStore, CacheWrap, CacheWrapper interfaces
* adjust KVStores to fit new CacheWrapper interface
* new ListenKVStore
* adjust multistores to fit new MultiStore interface and enable wrapping returned KVStores with the new ListenKVStore
* typo fixes in adr
* ListenKV Store test
* update server mock KVStore and MultiStore
* multistore unit test; fix multistore constructor
* update changelog
* fix bug identified in CI
* improve codecov, minor fixes/adjustments
* review fixes
* review updates; flip set to delete in KVStorePair, updated proto-docs from running 'make proto-gen'
* ADR-038 state listening
* updates/fixes
* review fixes/adjustments
* review fixes/adjustments part 2
* review updates part 3: refactor after review to coordinate store changes with block and tx messages and enable file pruning
* review updates part 4: additional details and fixes; addressing recent feedback; use binary protobuf encoding for kv pairs in files
* review updates part 5: formatting fixes; updated StreamingService/Hook interface
* auxiliary streaming/queue service
* review updates part 6: update StoreKVPair to differentiate between Set and Deletes on nil byte values; some minor adjustments
* typo fix
Julien Robert
Ian Norden
Robert Zaremba
Ryan Christoffersen
Ian Norden