Tracking issue for 2022 Q3 work on storage optimization.

• Optimize ABCI Response Information stored as part of state.db to validate latest height #8946
  • Validate the extent to which this reduces node storage needs, while still ensuring correctness
  • config: Migrate discard_abci_responses from [rpc] to new [storage] section #9274
  • Port Optimize ABCI Response Information and flag to save ABCI results #8028 #8946 #9090 to main