A change is coming to Ansible where module params will default to str.
Many of our modules were taking advantage of this by not being explicit
about the type, so they will break when that change merges. This hopefully
catches those cases.
All of the ansible OpenStack modules are driven by a clouds.yaml config
file which is processed by os-client-config. Expose the data returned by
that library to enable playbooks to iterate over available clouds.
