refactor(ethereum_clis): move generic code from TransitionTool to a new generic base class EthereumCLI

[danceratopz]

🗒️ Description

This refactors src/evm_transition_tool/ to a more library src/ethereum_clis/. The main aim being to allow easier definition of EVM sub-commands (for use in consume, for example) that can take advantage of a new base class EthereumCLI.

Next Steps

I would prefer to keep this PR tight in scope, in subsequent PRs, the next steps would be to:

• refactor(GethTransitionTool): move the statetest and blocktest commands out of TransitionTool and to subclass them from new StateTest and BlockTest classes (which in turn are derived from the EthereumCLI base class.
• refactor(solc): move the Solc class from src/ethereum_test_tools/code/yul.py to src/ethereum_clis/.
• feat(consume): add python interfaces for the statetest and blocktest commands for other clients and use them in consume direct.

🔗 Related Issues

None.

✅ Checklist

• All: Set appropriate labels for the changes.
• All: Considered squashing commits to improve commit history.
• All: Added an entry to CHANGELOG.md.
• All: Considered updating the online docs in the ./docs/ directory.
• Tests: All converted JSON/YML tests from ethereum/tests have been added to converted-ethereum-tests.txt.
• Tests: A PR with removal of converted JSON/YML tests from ethereum/tests have been opened.
• Tests: Included the type and version of evm t8n tool used to locally execute test cases: e.g., ref with commit hash or geth 1.13.1-stable-3f40e65.
• Tests: Ran mkdocs serve locally and verified the auto-generated docs for new tests in the Test Case Reference are correctly formatted.

[marioevz]

This is very nice! Just a single comment, but otherwise looks good 👍