Enable timeout for event-alarm for Aodh

This BP adds timeout mechanism for event-alarm. End user can specify a timeout, 0 (no timeout) by default for each event-alarm, and alarm status becomes 'OK' after timeout without receiving desired event.

Add useful metrics into Utilization Based Scheduling for OpenStack Compute (nova)

We hope to add more useful metrics into Utilization Based Scheduling, such as metric to monitor power consumption of a host, and metric to monitor the temperature on the chipset by IPMI with Intel node manager technology, so users can leverage that data to do utilization based scheduling, like CPU utilization which...