Make ain_getTransactionByHash() return tx execution result

[platfowner]

Change summary:

• Make ain_getTransactionByHash() return tx execution result
• Add IN_BLOCK transaction state
• Update the states of the transactions in blocks when they're executed

Related issues:

• https://github.com/ainblockchain/ain-blockchain/issues/1202
• https://github.com/ainblockchain/ain-blockchain/issues/1090

[platfowner]

Thanks for the review. @shyun-comcom @woomurf Now merging..