Inconsistent error handling in command verify functions of NFT module

[Incede]

Description

The NFT module throws an exception on errors, while the token module returns a VerificationResult with a VerifyStatus of TransactionVerifyResult.INVALID. In both cases, the state machine handles the errors similarly only altering the debug log that is created. However, the error handling for all command’s verify functions should be consistent.

Acceptance Criteria

• Update error handling in command verify functions of NFT module to return with appropriate status instead of throwing
• Update relevant unit tests

Additional Information

release/6.1.0