Adding undercloud ceilometer
Adding undercloud ceilometer

-adding Undercloud Ceilometer that will collect statistics
 about Overcloud nodes, via SNMP

Change-Id: I1e90ad8d5bad16bc1c418ca2dbd78163abe6267c

trozet/tripleo-heat-templates,openstack/tripleo-heat-templates,redhat-openstack/tripleo-heat-templates,dprince/tripleo-heat-templates,trozet/opnfv-tht,openstack/tripleo-heat-templates,bcrochet/tripleo-heat-templates,wyg3958/tripleo-heat-templates,rdo-management/tripleo-heat-templates,trozet/tripleo-heat-templates,bcrochet/tripleo-heat-templates,trozet/opnfv-tht,rdo-management/tripleo-heat-templates,dprince/tripleo-heat-templates,wyg3958/tripleo-heat-templates,redhat-openstack/tripleo-heat-templates,bcrochet/tripleo-heat-templates,trozet/opnfv-tht