Use DBUS to detect presence of Wi-Fi devices.

src/PiPedalSocket.cpp

@@ -1080,6 +1080,11 @@ public:
             UpdateStatus updateStatus = model.GetUpdateStatus();
             this->Reply(replyTo, "getUpdateStatus", updateStatus);
         }
+        else if (message == "getHasWifi")
+        {
+            bool result = model.GetHasWifi();
+            this->Reply(replyTo, "getHasWifi",result);
+        }
         else if (message == "updateNow")
         {
             std::string updateUrl;
@@ -1727,6 +1732,12 @@ private:
         Send("onLv2PluginsChanging", true);
         Flush();
     }
+    virtual void OnHasWifiChanged(bool hasWifi){
+        Send("onHasWifiChanged", hasWifi);
+        Flush();
+
+    }
+
     virtual void OnNetworkChanging(bool hotspotConnected) override
     {
         try