* transaction-status: Add return data to meta
* Add return data to simulation results
* Use pretty-hex for printing return data
* Update arg name, make TransactionRecord struct
* Rename TransactionRecord -> ExecutionRecord
* Add more-legitimate conversion from legacy Transaction to SanitizedTransaction
* Add Banks method with preflight checks
* Expose BanksClient method with preflight checks
* Unwrap simulation err
* Add Bank simulation method that works on unfrozen Banks
* Add simpler api
* Better name: BanksTransactionResultWithSimulation