[Keymap] Add personal keymaps (#6217)

* TuCZnak's NIU keymap

* TuCZnak's KBD75 layout

* TuCZnak's KBD67 layout

* Implemented suggested changes

* Implemented suggested changes, cleanup

* Implemented suggested changes, cleanup

keyboards/kbdfans/kbd67/rev2/keymaps/tucznak/config.h

@@ -0,0 +1,18 @@
+#pragma once
+
+#undef MANUFACTURER
+#undef PRODUCT
+#undef DESCRIPTION
+
+#define MANUFACTURER    Potato Inc.
+#define PRODUCT         Qt3.14
+#define DESCRIPTION     Look, a keyboard!
+
+/* send tap key if no layer key was used even after tap delay */
+#define TAPPING_TERM 50
+#define RETRO_TAPPING
+
+/* turn off RGB when computer sleeps */
+#ifdef RGB_DI_PIN
+#define RGBLIGHT_SLEEP
+#endif