Add missing overrides to swagger_auto_schema (#194)

Add missing `operation_summary` and `deprecated` to `swagger_auto_schema` decorator data. The previous PR missed adding these to extra overrides.

- Added tests
- Updated reference.yaml

Refs #149, #173.
Closes #194, #198.

src/drf_yasg/utils.py

@@ -107,6 +107,8 @@ def swagger_auto_schema(method=None, methods=None, auto_schema=unset, request_bo
             'query_serializer': query_serializer,
             'manual_parameters': manual_parameters,
             'operation_id': operation_id,
+            'operation_summary': operation_summary,
+            'deprecated': deprecated,
             'operation_description': operation_description,
             'security': security,
             'responses': responses,