verify the crypto part of the state proof transaction only once

[id-ms]

Context

Currently, a node might verify the cryptography part of a state proof transaction several times when the transaction is in the transaction pool.

Acceptance Criteria

The cryptography of state proof should be verified once (using the transaction cache)

[algonoah]

Need to gauge performance impact. How expensive is each SP verification and how many times are we doing duplicate verification (happens each round the txn is stuck waiting in the pool)