Our base class for API resources checks for Local Site access and login

requirements by way of decorators on the get(), get_list(), and

delete() methods (create() and update() implementations all apply

their own decorators today).
Most of our resources augment these handler functions, utilizing these

decorators. However, many of these then re-apply the same decorators,

creating redundant checks that may hit the database a second time

unnecessarily.
This change audits the code, carefully removing only the redundant

decorators. This was done by adding assertions to the decorators to see

if they were already applied and then, one-by-one, running the test

suite, seeing an assertion in loading the code, and removing the

duplicate decorator. No decorators other than those flagged as

duplicates have been removed.
This has the additional effect of improving performance on Local Sites

by reducing the database queries by 1 for each request.

All unit tests passed.
Tested a handful of queries using in-progress query assertion work

and verified that the excess queries were gone.