The swift operations were rebuilding the swift client with every operation. This is very expensive, calls over to keystone often and is generally very slow. This change supports building a swift service that is used across many operations. This should speed up operations quite a bit, especially with a reboot of the system. Change-Id: Iacbc87f26cf2e568bc662a96b6d9b459b814c98f Partial-Bug: 1584946