Add proliantutils dependency for Ironic

This module is required in Ironic project for proliant hardware
due to https://review.openstack.org/#/c/89500/.

Change-Id: I7395e6e4ade76e88f1ab054a5edf2544683b5275
Add os-client-config

Starting with python-openstackclient we're intending to add this to the
client libraries. Add it here so that this is possible.

Change-Id: I801eb38114eb2fe5c773094fae6b8e20c99dfec5
Gate python-keystoneclient-federation on global reqs

Change-Id: I2aff9c508a0dfd7f8bae677a754b1253ecccad39
Merge "Gate python-keystoneclient-federation on global reqs"
Merge "Add os-client-config"
Merge "Add proliantutils dependency for Ironic"