Import cl-openstack-client libraries

Change-Id: I210cc7ccb54a89a3d3d92100262d19fff1f37083
Reviewed-on: https://review.openstack.org/33170
Approved: Clark Boylan <clark.boylan@gmail.com>
Reviewed-by: Clark Boylan <clark.boylan@gmail.com>
Tested-by: Jenkins
Add requirements gate to trove.

Change-Id: I750bbd2a953165e922f76fb980e89b2152f58514
Reviewed-on: https://review.openstack.org/33317
Reviewed-by: James E. Blair <corvus@inaugust.com>
Reviewed-by: Clark Boylan <clark.boylan@gmail.com>
Reviewed-by: Jeremy Stanley <fungi@yuggoth.org>
Approved: Clark Boylan <clark.boylan@gmail.com>
Tested-by: Jenkins