[Keyboard] Nebula12 keyboard (#9397)

Co-authored-by: Ryan <fauxpark@gmail.com>
Co-authored-by: Drashna Jaelre <drashna@live.com>

keyboards/nebula12/keymaps/via/keymap.c

@@ -0,0 +1,42 @@
+/* Copyright 2020 Yiancar
+ *
+ * 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_all( /* Base */
+    KC_P7, KC_P8, KC_P9,
+    KC_P4, KC_P5, KC_P6,
+    KC_P1, KC_P2, KC_P3,
+    MO(1), KC_P0, KC_PDOT),
+
+[1] = LAYOUT_all( /* FN */
+    RGB_TOG, RGB_MOD, KC_TRNS,
+    EF_DEC,  EF_INC,  KC_TRNS,
+    KC_TRNS, KC_TRNS, KC_TRNS,
+    KC_TRNS, KC_TRNS, KC_PENT),
+
+[2] = LAYOUT_all( /* Empty for dynamic keymaps */
+    KC_TRNS, KC_TRNS, KC_TRNS,
+    KC_TRNS, KC_TRNS, KC_TRNS,
+    KC_TRNS, KC_TRNS, KC_TRNS,
+    KC_TRNS, KC_TRNS, KC_TRNS),
+
+[3] = LAYOUT_all( /* Empty for dynamic keymaps */
+    KC_TRNS, KC_TRNS, KC_TRNS,
+    KC_TRNS, KC_TRNS, KC_TRNS,
+    KC_TRNS, KC_TRNS, KC_TRNS,
+    KC_TRNS, KC_TRNS, KC_TRNS),
+};

keyboards/nebula12/keymaps/via/readme.md

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+# The default keymap for Nebula12. VIA support enabled.
+
+![Layer 0](https://i.imgur.com/CoMteJW.png)
+
+![Layer 1](https://i.imgur.com/LbIPiJj.png)

keyboards/nebula12/keymaps/via/rules.mk

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+VIA_ENABLE = yes