* change(bank): add utxo events and simplify logic
* add(bank): balance and supply tracking test
* chore(bank): fix balance tracking test comment
* fix(grpc): service test
* fix(bank): sub unlocked coins to use less gas
* fix(auth): cli test gas
* fix(rest): grpc gas test
* fix(staking/cli): increase delegation required gas
* add: burn events, fix tests
* fix(auth/tx): grpc test
* add(bank): coin events in delegate
* fix(bank): add amt check in delegate coins back
* change(bank): add coin spent and coin recv events in burn and mint
* change(bank): revert sub coin function
* change(auth): revert cli test
* change(auth): revert service test
* chore(auth): fix events comment in service_test.go
* chore: update CHANGELOG.md
* remove(bank): balanceError func
* chore(bank): address lint warnings
* chore(bank): update events spec
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>