Make t9n like consume tool in eels to validate transaction tests

[winsvega]

Currently transaction tests does not verify against anything. I can put exception or remove it or put another exception it will just generate the fixture.

What we need it to check transaction serialization and verify returned excpetion in deserialize method compared to expected. so we confirm that exception does happen as we write the test

We can either implement t9n tool (a separate tool from t8n) that verifies given transaction rlp to be a valid structure

Or use internal transaction class serialization to catch the errors hardcoded in python