Adding an option to select the initial onscreen keyboard layout, adding an option to disable changes between layouts

src/parse.h

@@ -56,6 +56,8 @@ struct cfginfo
   const char *wheely;
   const char *mouseaccessibility;
   const char *onscreen_keyboard;
+  const char *onscreen_keyboard_layout;
+  const char *onscreen_keyboard_disable_change;
   const char *joystick_slowness;
   const char *joystick_lowthreshold;
   const char *joystick_maxsteps;