osc-lib: api.auth

Move auth plugin checking to osc-lib.

Change-Id: I673d9c2d6e8bbf724c3000459a729e831d747814

examples/object_api.py

@@ -25,13 +25,11 @@ import logging
 import sys
 
 import common
-
+from os_client_config import config as cloud_config
 
 from openstackclient.api import object_store_v1 as object_store
 from openstackclient.identity import client as identity_client
 
-from os_client_config import config as cloud_config
-
 
 LOG = logging.getLogger('')