livoxProto1: udpCmdDemux now consults per-device handler registry

Device class objects now have a per-Device unordered_map of handlers
keyed by cmd_set+cmd_id.

commonLibs/livoxProto1/core.cpp

@@ -257,6 +257,7 @@ void main(const std::shared_ptr<smo::ComponentThread> &componentThread,
 	protoState.smoCallbacks = smoCallbacks;
 	protoState.deviceManager = std::make_unique<DeviceManager>();
 	protoState.deviceManager->broadcastListener.start();
+	protoState.deviceManager->udpCommandDemuxer.start();
 }
 
 void exit(void)
@@ -265,10 +266,11 @@ void exit(void)
 		return;
 	}
 
+	protoState.deviceManager->udpCommandDemuxer.stop();
 	protoState.deviceManager->broadcastListener.stop();
 	protoState.deviceManager.reset();
 	protoState.componentThread.reset();
 	protoState.isInitialized = false;
 }
 
-} // namespace livoxProto1
+} // namespace livoxProto1