Move common openstack service installation operations into a new script `os-svc-install`, which simplifies the elements for openstack services. Change-Id: Ied8ac3278e7fe8af76e24748ec4e598a84afa03c
Only supports Debian family distribution so far. Change-Id: I9fa0b833c34a614fe498c6c6ae599733a69c1309
Change-Id: I478227c7a6b806e2aaa52f28ba6c6408d55e9ebc