Add next_hop and relayed_by in PacketHistory for setting next-hop and handle flooding fallback

src/main.cpp

@@ -727,11 +727,7 @@ void setup()
     audioThread = new AudioThread();
 #endif
 
-    config.lora.next_hop_routing = true; // FIXME - remove this before merging
-    LOG_INFO("USING NEXT-HOP ROUTING\n");
-
-    service = new MeshService();
-    service->init();
+    service.init();
 
     // Now that the mesh service is created, create any modules
     setupModules();