* Add tests for schema exclusions

* Move exclusion check to should_include_endpoint

* Update docs

* Switch to using `schema = None`

* Test PendingDeprecationWarnings

* Add note to release notes.

* s/deprecated/pending deprecation/

* Add PR link to release notes

* Correct typo in test class name

* Test 'exclude_from_schema' deprecation warning message (#1)

* Correct deprecation warning message