Add OpenStack-Ansible metadata
Add OpenStack-Ansible metadata

We need to add openstack ansible information in the role
metadata to be able to track role maturity. With it,
we can create a role maturity table and take decisions about
role deprecations.

Change-Id: I4c9bf8cb1ea82a551f376b2a789a3f5ea4535ddc

openstack/openstack-ansible-galera_client,openstack/openstack-ansible-galera_client