[Feature] NRM response to phase_context event

Made changes in NRM to respond to phase_context event from [previously
called power_policy event (874a6a4d)] from the application. The NRM can now
store the informaton received on the event and call DDCM power policy through
interfaces developed (Issue #11) in the control loop

See Issue #10
3 jobs for 10-integrating-power-policy-with-downstream-api-daemon-py