added new submenu for key assignment

configwriting/saving isn't complete and will break your config if you use fancy keys

src/keycode.h

@@ -21,11 +21,13 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #define KEYCODE_HEADER
 
 #include "common_irrlicht.h"
+#include <string>
 
 irr::EKEY_CODE keyname_to_keycode(const char *name);
 
 // Key configuration getter
 irr::EKEY_CODE getKeySetting(const char *settingname);
-
+std::string keycode_to_keyname(s32 keycode);
+void clearCache();
 #endif