Add access rules restriction tests

Adds new test cases and updates current test cases for access allow
and deny APIs. Such APIs now allow users to restrict the visibility
of some fields during the access creation, or even restricting the
deletion of access rules.

Depends-On: https://review.opendev.org/c/openstack/manila/+/887725
Change-Id: If0f7655dc6c11c6c12eeb76bd1cc853466235cca
5 files changed