CrowdDetector: Add RegionOfInterestConfig to crowddetector structure

Change-Id: Ib4a0f0cb36e08da57cd8f52f142760a9f2eedb2e
CrowdDetector: add events for crowddetector

Change-Id: Ie7451e7ba6f94a6c4e4b39b908738565bd2c017e