refactor(fixtures,consume): Make BaseFixture able to parse any format

[marioevz]

🗒️ Description

BaseFixture Refactor

Refactors BaseFixture to make it able to parse (validate) any defined fixture format.

The class now automatically collects all fixture formats and generates a type adapter that is able to discriminate based on the _info.fixture_format field.

This allows the creation of a single Fixtures class that is a pydantic root model, and is able to parse any fixtures file, without the need to create a new class for each fixture type, and the following classes have been removed:

• BlockchainFixtures
• BlockchainEngineFixtures
• StateFixtures
• TransactionFixtures
• EOFFixtures

The constants FIXTURE_FORMATS and EXECUTE_FORMATS have also been removed since they are now automatically generated for current and any future fixture formats without any extra code.

One caveat is that ethereum/tests cannot be parsed automatically since they lack the _info.fixture_format field.

Due to this, a single definition of BlockchainFixtures is added to src/cli/eofwrap.py, since this script loads legacy tests.

Consume Fixture Loading Refactor

All hive consume simulators new use a single generic fixture to load any type of fixture, and the pytest fixture fixture_format has been added to every parametrized case.

New Fixture Format Example

In #1175, a new fixture format is introduced on top of the changes in this branch, and it can be appreciated how much the changes in this PR simplify the fixture format creation.

🔗 Related Issues

✅ 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.

[danceratopz]

This is really amazing! 😄

I tried out the src/cli/check_fixtures command; it was trying to load the fixtures/.meta/eels_resolutions.json file and was correctly hitting "Fixture does not have an info field, cannot determine fixture format". Really nice. I fixed up the check_fixtures, but we currently don't use it anywhere.

The FixturesDict class to cache the fixtures in consume is a really nice addition!