These are a close to a straight port as was possible, no cleanup was
performed where it wasn't absolutly necessary.
In addition, we add flags to enable V1, V2, Admin API tests, and a
V1 servers API flag, as these tests have proved particularly
susceptible to race conditions.
Change-Id: Idc31c00c95fde96087f4f222ae9c17e554e6b1fc
See https://review.openstack.org/283511 for history.
Change-Id: I7733e8786d6b525a7c9a8d4f12add329cd030d9d
Partially-Implements: blueprint designate-tempest-plugin