[Keyboard] Add s-ol/0xC.pad (#16057)

* [Keyboard] Add s_ol/0xc_pad

* [Keyboard] add factory testing RGB_MATRIX pattern

Co-authored-by: s-ol <s-ol@users.noreply.github.com>

keyboards/s_ol/0xc_pad/keymaps/default/keymap.c

@@ -0,0 +1,25 @@
+/* Copyright 2021 s-ol
+ *
+ * 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 QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    [0] = LAYOUT(
+                RGB_RMOD, RGB_MOD,
+            KC_CUT , KC_COPY, KC_PSTE,
+        KC_PGUP, KC_PGDN, KC_VOLU, KC_VOLD,
+            KC_1   , KC_2   , KC_3
+    ),
+};