Add query support for tx by signature & tx by acc+seq combination

[clevinson]

Summary

It was identified recently in #9723 that there are some ways in which one can generate several valid TxHashes for a given transaction. Because of this we should add explicit query support for querying tx by signature & querying tx by account + sequence combination.

Problem Definition

It is possible to query tx by TxHash and receive no result, even if the transaction was successfully broadcasted to the network. Clients & users should have a method to query for txs with stronger guarantees that if the transaction was successful they can find it.

Proposal

Implement two new query routes (and implement new indices where necessary):

• simd q tx --signature [SIG_BYTES]
• sims q tx --account [ACC_NUMBER] --sequence [SEQUENCE]

---

For Admin Use

• Not duplicate issue
• Appropriate labels applied
• Appropriate contributors tagged
• Contributor assigned/self-assigned