This adds support for executing helm tests via the armada test
directive. It enables theses tests for all services, except for
nova and neutron as executing tests with armada force a chart to
wait. Forcing nova and neutron to wait effectively sequences the
charts, which will result in a failure to deploy past those
services
Depends-On: https://review.openstack.org/#/c/581148
Change-Id: I6ac845c82d744e2f5fd79c3e2ff3c1479dd1ddab
2840259fb8