livoxProto1: Keep protocol headers pure;

Split the BroadcastListener, DiscoveredDevice and other concerns
out of the protocol header and implementation files.

commonLibs/livoxProto1/CMakeLists.txt

@@ -6,6 +6,7 @@ if(ENABLE_LIB_livoxProto1)
 		livoxProto1Core.cpp
 		livoxProto1Device.cpp
 		livoxProto1Protocol.cpp
+		broadcastListener.cpp
 	)
 
 	# Set config define for header generation