Some of sites defined in document model have no metadata.yaml,
which is essential to work properly with that sites.
* az-test-site and gcp-test-site metadata.yaml added
* metadata.yaml for test-site moved to appropriate directory
for consistency
Change-Id: Ibec109e41a5e3fd36794dc6a879888cfc610c9cc
Signed-off-by: Ruslan Aliev <raliev@mirantis.com>
Relates-To: #19