[Access] Add endpoints to get transaction and results by block #8206
Description
The gRPC endpoint has methods to get all transactions and transaction results by block ID, but the REST API is missing this functionality.
Add new endpoints to get all transactions/results for the block. This should include system and scheduled transactions.
e.g.
GET /v1/transactions?height=123GET /v1/transaction_results?block_id=abc123
existing endpoints:
GetTransactionsByBlockIDGetTransactionResultsByBlockID