node-health validation will now be using openstack-ansible-collection
modules to obtain information about cloud structure and state.
This will allow the validation to be executed in environments with
more strict authentication requirements.
Documentation was updated to provide more information about authentication
procedure used.
Signed-off-by: Jiri Podivin <jpodivin@redhat.com>
Change-Id: Id3f332b7fd70a54d537dabec447ffa22a36256fd