Merge "ISSUE Currently ForwardingRulesManager installs the proactive mode flows throu...

Merge "ISSUE Currently ForwardingRulesManager installs the proactive mode flows through the static flow configuration path. This allows these controller generated flows to be listed in the flow programmer UI. The drawback of this approach is that now the proactive flows are saved to FRM startup configuration, when user saves the config. So when FRM boots up, it will program the proactive flows on the switch whenever the switch connects to the controller, regardless of the actual switch forwarding mode configured on switch mgr."