Ceilometer integration for tuskar-ui

Here is the list of things we need to begin a Ceilometer integration in second iteration. 1. The minimum to start is an Baremetal agent https://blueprints.launchpad.net/ceilometer/+spec/monitoring-physical-devices https://blueprints.launchpad.net/ironic/+spec/send-data-to-ceilometer 2. Add the meters that maps the ...