* cmd/evm: add 256-bit field validations on transactions (t9n) * cmd/evm: validate gas*gasPrice, return intrinsic gas usage * cmd/evm: address review comment
* cmd/evm: t9n: validate transaction intrinsic gas * cmd/evm: t9n: stricter tx validation
* cmd/evm: transaction validation tool * cmd/evm: add hash to t9n tool * cmd/evm: lint nits * cmd/evm: nitpicks