Add Djinn. (#17382)

* Add Djinn.

* Review comments.

* Further cleanup.

keyboards/tzarc/djinn/graphics/lock-num-OFF.qgf.h

@@ -0,0 +1,11 @@
+// Copyright 2022 QMK -- generated source code only, image retains original copyright
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+// This file was auto-generated by `qmk painter-convert-graphics -i lock-num-OFF.png -f mono4`
+
+#pragma once
+
+#include <qp.h>
+
+extern const uint32_t gfx_lock_num_OFF_length;
+extern const uint8_t  gfx_lock_num_OFF[286];