Updated openstack/openstack
Project: openstack/python-cinderclient  b8e6ad0108a7e26f424edf79143ccd97db8cf478

Reuse Resource from oslo

Class Resource from oslo is equal to code from cinderclient.
In the process of unification of the clients code we should
reuse common functionality from Oslo.

Related to blueprint common-client-library-2

Change-Id: If39e49ff739d659d145725966192acf81975c90c