Update APIControllerWithIncludeAndExcludeFilterTestCase class so it also works when RBAC is enabled.
Update APIControllerWithIncludeAndExcludeFilterTestCase class so it also
works when RBAC is enabled.

When RBAC is enabled, we simply use admin use when testing include and
exclude attributes functionality.

StackStorm/st2,Plexxi/st2,Plexxi/st2,nzlosh/st2,nzlosh/st2,StackStorm/st2,Plexxi/st2,StackStorm/st2,Plexxi/st2,nzlosh/st2,StackStorm/st2,nzlosh/st2