monitor: implement boot_wait
monitor: implement boot_wait

Change-Id: I946c2d9db09ef077a033c4c55e2088ab35f612ae

openstack/tacker,stackforge/tacker,priya-pp/Tacker,trozet/tacker,openstack/tacker,SripriyaSeetharam/tacker,priya-pp/Tacker,stackforge/tacker,zeinsteinz/tacker,trozet/tacker,SripriyaSeetharam/tacker,zeinsteinz/tacker,openstack/tacker