[Keyboard] Ninjin (#12496)

* ninjin init

* put in gpl thing

* underglow

* update to latest chibios

* fix gpl headers

* remove other files

* fix header

* Update keyboards/xelus/ninjin/readme.md

Co-authored-by: Nick Brassel <nick@tzarc.org>

* Update keyboards/xelus/ninjin/mcuconf.h

Co-authored-by: Nick Brassel <nick@tzarc.org>

* Update keyboards/xelus/ninjin/halconf.h

Co-authored-by: Nick Brassel <nick@tzarc.org>

Co-authored-by: Nick Brassel <nick@tzarc.org>

keyboards/xelus/ninjin/ninjin.c

@@ -0,0 +1,28 @@
+/* Copyright 2021 Harrison Chan (Xelus)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "ninjin.h"
+
+void eeconfig_init_kb(void) {  // EEPROM is getting reset!
+    rgblight_enable(); // Enable RGB by default
+    rgblight_mode(RGBLIGHT_MODE_RGB_TEST); // set to RGBLIGHT_MODE_RGB_TEST by default
+
+    eeconfig_update_kb(0);
+    eeconfig_init_user();
+}
+
+// Tested and verified working on Ninjin
+void matrix_io_delay(void) { __asm__ volatile("nop\nnop\nnop\n"); }