Add a docker-ha.yaml environment file for containerized HA deployments
This adds a docker-ha.yaml that can be passed to the deployment
environments in order to get a containerized HA deployment.
Until we make the containerized deplyment the default the operator
must first include docker.yaml and *then* docker-ha.yaml in order
to get a containerized overcloud with an HA control plane.
We also make sure that the ClusterCheck service is set to None
by default and is part of the Controller roles.
Change-Id: I13204d70aad8dfeaf2bcf2ae30a1bb4715167659