IOS/USB: Emulate Wii Speak (OpenAL)

Credits to @degasus and shuffle2 (godisgovernment):
https://github.com/degasus/dolphin/tree/wiispeak

Source/Core/DolphinQt/MenuBar.h

@@ -94,6 +94,7 @@ signals:
   void ShowResourcePackManager();
   void ShowSkylanderPortal();
   void ShowInfinityBase();
+  void ShowWiiSpeakWindow();
   void ConnectWiiRemote(int id);
 
 #ifdef USE_RETRO_ACHIEVEMENTS