As we can see in the codebase, we have 3 "Status" enums which are
located at:
- watcher/objects/action.py
- watcher/objects/action_plan.py
- watcher/objects/audit.py
So I renamed them from "Status" to "State" to be consistent with
the DB schema.
Change-Id: If3d180c9daba6ae9083775ad6813aa4c21763dbf
Closes-Bug: #1522733