* t8ntool: add output basedir * t8ntool: add txhash to trace filename * t8ntool: don't default to '.' basedir, allow absolute paths
This PR implements the EVM state transition tool, which is intended to be the replacement for our retesteth client implementation. Documentation is present in the cmd/evm/README.md file. Co-authored-by: Felix Lange <fjl@twurst.com>