Tests: Have LLMs create many for us - objects_api - 1st go

[joeflack4]

Partially addresses:

• 819

Changes

Unit tests: new battery of tests generated from AI Using generative AI, e.g. Claude, to look at individual files and come up with some test case scaffolding for us, then tweaking to fit our codebase, expected API results, etc.

• Update: test_objects_api.py with such tests

General

• Update: link_types(): It now just calls get_link_types(), and it is now deprecated. Functions were doing the same thing, only link_types() had less options.
• Add: Some todo comments
• Update: Some misc minor refactoring
• Update: Changed a get_object_links() typedef