[WIP] Verkle changes to test t8n

[marioevz]

🗒️ Description

Adds changes to the forks structure to be able to test Prague on top of Shanghai until refactor of verkle geth branch.

Usage
Use the following geth branch: gballet/t8n-merge-from-shanghai-to-prague

Remaining Todos
Use the evm t8n verkle sub command to get the expected key from the tree, in order to verify the appropriate values.

🔗 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: 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.

[spencer-tb]

CIFO: #507

All relavent changes are now includede there.