* This is a combination of the compute and volume API limits as they are
very similar. As such, the command lives in a new command group
'openstack.common' that is unversioned.
* Implements 'limits show [--absolute|--rate]
Updated for https://review.openstack.org/#/c/36772/
Bug: 1172057
Change-Id: I2bd181cd0d098f7143360ae67944c2f221379af5
