The following changes have been made to reorganize the structure of this
role's test playbooks, bringing them into line with other
OpenStack-Ansible roles:
- move each playbook to an individual file
- rename playbooks descriptively
- define hosts and groups directly in the inventory file
- include group vars required by containers
- store extra variables in a single shared test-vars file
- remove use of the openstack_hosts role
- include callback plugin for human readable logging of test tasks
Change-Id: I4829e368003f58685cb96b7ee743255d00542187
(cherry picked from commit a37735c3fb)