Deploy Keystone versionless endpoints
Deploy Keystone versionless endpoints

With the move to Keystone v3 API, let's use versionless endpoints for Keystone,
so Keystone v3 API will be picked by default.

Change-Id: I50b6c7a1ebb99fda9d372e172440fe716af6fe85

openstack/puppet-openstack-integration,openstack/puppet-openstack-integration,openstack/puppet-openstack-integration