Extends OSC plugin with the new command:
openstack baremetal driver property list <driver>
This returns a list of the names of a driver's properties
along with their descriptions.
Change-Id: I4419daa68928a479971dab80806f0dfac37224a4
Closes-Bug: 1619053
Co-Authored-By: Ruby Loo <ruby.loo@intel.com>