[Keyboard] Keebwerk MEGA Initial commit (#10777)

* Initial commit

- Add Keebwerk Mega pcb
- Update wilba rgb code

* Update keyboards/keebwerk/mega/ansi/keymaps/default/keymap.c

Co-authored-by: Ryan <fauxpark@gmail.com>

* Update keyboards/keebwerk/mega/ansi/keymaps/via/readme.md

Co-authored-by: Ryan <fauxpark@gmail.com>

* Update keyboards/keebwerk/mega/ansi/rules.mk

Co-authored-by: Ryan <fauxpark@gmail.com>

* Update keyboards/keebwerk/mega/ansi/keymaps/via/keymap.c

Co-authored-by: Ryan <fauxpark@gmail.com>

* Update keyboards/keebwerk/mega/ansi/keymaps/default/readme.md

Co-authored-by: Ryan <fauxpark@gmail.com>

* Update keyboards/keebwerk/mega/ansi/ansi.c

Co-authored-by: Ryan <fauxpark@gmail.com>

* Update keyboards/keebwerk/mega/ansi/ansi.c

Co-authored-by: Ryan <fauxpark@gmail.com>

* Update keyboards/keebwerk/mega/ansi/ansi.c

Co-authored-by: Ryan <fauxpark@gmail.com>

* Update keyboards/keebwerk/mega/ansi/ansi.c

Co-authored-by: Ryan <fauxpark@gmail.com>

Co-authored-by: Ryan <fauxpark@gmail.com>

keyboards/keebwerk/mega/ansi/ansi.c

@@ -0,0 +1,59 @@
+/* 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/>.
+ */
+#ifndef RGB_BACKLIGHT_KW_MEGA
+#error RGB_BACKLIGHT_KW_MEGA not defined, recheck config.h
+#endif
+
+#include "ansi.h"
+#include "drivers/issi/is31fl3733.h"
+
+uint8_t R = 0;
+uint8_t G = 0;
+uint8_t B = 0;
+
+/* Indicator LEDs are part of the LED driver
+ * Here the LEDs are used to indicate layers 1, 2 and 3.
+ * Below there is a commented out example of how to use the indicators for capslock.
+ */
+// bool led_update_kb(led_t led_state) {
+//     bool res = led_update_user(led_state);
+//     if(res) {
+//         if (led_state.caps_lock) {
+//             G = 255;
+//         } else {
+//             G = 0;
+//         }
+//         IS31FL3733_set_color( 6+64-1, R, G, B );
+//     }
+//     return res;
+// }
+
+__attribute__((weak)) layer_state_t layer_state_set_user(layer_state_t state) {
+    R = 0;
+    G = 0;
+    B = 0;
+    if (IS_LAYER_ON_STATE(layer_state, 1)) {
+        G = 255;
+    }
+    if (IS_LAYER_ON_STATE(layer_state, 2)) {
+        R = 255;
+    }
+    if (IS_LAYER_ON_STATE(layer_state, 3)) {
+        B = 255;
+    }
+    IS31FL3733_set_color( 6+64-1, R, G, B );
+  return state;
+}