- Refactor of `test_containers.py` 8b9731dfa1
- Updates the `content_libraries/api/containers` and `content_libraries/rest_api` to support:
- Basic CRUD for sections and subsections as containers
- Basic CRUD support for section and subsection children
- Updates the `content/search` to support:
- Basic CRUD for sections and subsections as containers in the search index
- Basic CRUD support for section and subsection children in the search index
- Updates the `content_libraries/tests/test_containers.py` to test the new support
- Updates the `content/search/tests` to test the new support.
- I verified that the add/remove to collection works without major changes. Tests updated