SCORU: host function store_list_get

Context

This will close #3543 (closed). It implements the store_list_get host function. It is based on !6423 (merged)

Manually testing the MR

dune exec src/lib_scoru_wasm/test/test_scoru_wasm.exe \       
                    -- test "Durable storage"

Checklist

• Document the interface of any function added or modified (see the coding guidelines)
• Document any change to the user interface, including configuration parameters (see node configuration)
• Provide automatic testing (see the testing guide).
• For new features and bug fixes, add an item in the appropriate changelog (docs/protocols/alpha.rst for the protocol and the environment, CHANGES.rst at the root of the repository for everything else).
• Select suitable reviewers using the Reviewers field below.
• Select as Assignee the next person who should take action on that MR