Match smaugclient change, create returns an object
Match smaugclient change, create returns an object

smaugclient patch: https://review.openstack.org/331609 changes
trigger, scheduled operation, plan, checkpoint, and restore create()
to return an object instead of a dictionary.
This patch matches those changes.

Change-Id: Id6aec4af6690252f225dd3d65697e5aba754ef4f

openstack/smaug,openstack/smaug