qt: Add evdev keycode mapper

src/qt/evdev_keyboard.hpp

@@ -0,0 +1,20 @@
+/*
+ * 86Box    A hypervisor and IBM PC system emulator that specializes in
+ *          running old operating systems and software designed for IBM
+ *          PC systems and compatibles from 1981 through fairly recent
+ *          system designs based on the PCI bus.
+ *
+ *          This file is part of the 86Box distribution.
+ *
+ *          Definitions for evdev keyboard input module.
+ *
+ *
+ *
+ * Authors: RichardG, <richardg867@gmail.com>
+ *
+ *          Copyright 2023 RichardG.
+ */
+#ifndef EVDEV_KEYBOARD_HPP
+#define EVDEV_KEYBOARD_HPP
+uint16_t evdev_translate(uint32_t keycode);
+#endif