Resolve "Adjust abc-interpreter to new array representations"

What does this MR do?

Adds support for the new array representation in base-rts 2.0.

Changes to public APIs

None.

Author's checklist (required)

• If bugs have been solved, tests have been added (guidelines)
• A changelog entry has been added (guidelines)
• Newly added code is documented (guidelines)
• Newly added code has a style consistent with the rest of the repository
• Intermediate commits compile (use git rebase -i main if not)

Related issues

Closes #122 (closed); closes #129 (closed)