Convert Resource to separate action/status

Convert Resource to separate action/status

Next step in decoupling action/status

This adjusts the Resource DB columns, model and class to be consistent
with Event, and split action/status.  This also modifies the both APIs
to join the action/status to avoid changing the API (we can't change
the CFN one anyway and it's desirable to avoid breaking compatibility
with the ReST API, or needing a version bump for this simple change)

Change-Id: I02b56eb14045a058e67b9764d386530d555c339e