Website: items, clubs, copies, rentals CRUD

[some-molasses]

For each of the tables listed, add endpoints:

• GET /api/<items|clubs|copies|rentals>
• GET /api/<items|clubs|copies|rentals>/uuid
• POST /api/<items|clubs|copies|rentals>
• PATCH /api/<items|clubs|copies|rentals>
• DELETE /api/<items|clubs|copies|rentals>

we'll make these all bulk for our future selves' benefit :)