Implement basic virtual keyboard support

- Listener for clicks inside of text fields and other text-based screens
- Virtual keyboard screen in a QWERTY layout

common/src/main/java/eu/midnightdust/midnightcontrols/client/MidnightControlsClient.java

@@ -204,6 +204,7 @@ public class MidnightControlsClient extends MidnightControls {
         RainbowColor.tick();
         TouchInput.tick();
     }
+
     /**
      * Called when opening a screen.
      */