Add state to sub_alarm table
Add state to sub_alarm table

Added a default value for the field. Will take it
out once the code changes are in for last-value.

Change-Id: I6686db67a5caeb3d25ce452b0875d3fd318dc10c
Implements: Blueprint last-value

openstack/monasca-api,stackforge/monasca-api,stackforge/monasca-api,sapcc/monasca-api,stackforge/monasca-api,sapcc/monasca-api,sapcc/monasca-api,stackforge/monasca-api,openstack/monasca-api,openstack/monasca-api