feat(fw): EOF - Add containerKind to EOF fixtures, add --initcode flag when calling evmone-eofparse

[marioevz]

🗒️ Description

Introduces kind field in the Container class and the EOFTest class, used to mark a container as a specific kind of container, such as "INITCODE".
When the field is set:

• evmone-eofparse is called with the --initcode flag
• the output EOF fixture contains containerKind: "INITCODE" field in all vectors, by default it contains containerKind: "RUNTIME".

Example of a test fixture JSON file after this change:

{
    "tests/prague/eip7692_eof_v1/eip3540_eof_v1/test_all_opcodes_in_container.py::test_all_opcodes_in_container[fork_CancunEIP7692-eof_test-opcode_STOP]": {
        "vectors": {
            "0": {
                "code": "0xef00010100040200010029030001001404002000008000146000600060006000600060006000600060006000600060006000600060006000600060006000600000ef000101000402000100010400000000800000001122334455667788112233445566778811223344556677881122334455667788",
                "containerKind": "INITCODE",  # NEW FIELD
                "results": {
                    "Prague": {
                        "result": true
                    }
                }
            }
        }
    }
}

🔗 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.

[shemnon]

Looks good.