Add very initial support for passing in occ object
Add very initial support for passing in occ object

We've got a split personality in terms of whether we should use or not
use os-client-config... except we have a hard dependency on it. Maybe we
should just use it.

Change-Id: I398cfb474791fd0ee5e15de4e0ae222c1b25b9c0

stackforge/python-openstacksdk,jsmartin/shade,stackforge/python-openstacksdk,openstack-infra/shade,openstack-infra/shade,openstack/python-openstacksdk,jsmartin/shade,dtroyer/python-openstacksdk,dtroyer/python-openstacksdk,openstack/python-openstacksdk