This introduces a series of build_basic_<method>_expected_queries()

methods that take in setup state, expected flags for the test, and

return the expected queries for the test. This will let us incrementally

add expected queries to API test suites in order to audit performance

and behavior.
All of the HTTP method handlers in the basic HTTP mixins either call the

appropriate build method or hard-code queries (when they're just going

through standard API layers and not hitting the resources directly).
This has already caught a few problems in our API implementations, which

have been fixed and put up for review already.

Unit tests pass.