Register sahara client specific config opts
Register sahara client specific config opts

Change-Id: Ic292ac938edd81f58eaefc07958b5b56e33d1506

rh-s/heat,pshchelo/heat,pshchelo/heat,cryptickp/heat,miguelgrinberg/heat,pratikmallya/heat,maestro-hybrid-cloud/heat,srznew/heat,cwolferh/heat-scratch,pratikmallya/heat,cwolferh/heat-scratch,cryptickp/heat,steveb/heat,rdo-management/heat,gonzolino/heat,dims/heat,jasondunsmore/heat,noironetworks/heat,takeshineshiro/heat,takeshineshiro/heat,miguelgrinberg/heat,openstack/heat,noironetworks/heat,dragorosson/heat,dragorosson/heat,steveb/heat,dims/heat,maestro-hybrid-cloud/heat,rh-s/heat,srznew/heat,gonzolino/heat,jasondunsmore/heat,rdo-management/heat,openstack/heat