Adds basic support for u/flehrad's bigswitch pcb (#3015)

* Adds basic support for u/flehrad's bigswitch pcb

 - also adds support for OSX Eject/Power
   The function of this key depends on the version of OSX and if you
   have physical media. For a macbook pro 2017 holding this key down
   brings up the shutdown dialog. If you wrap it in LCTL and LSFT the
   screenlock turns on immediately.

* Switch to Layout Macro

 - add a code for OSX Sleep

* Add a README

* Turn on RGB by default

* Add info.json

* Address comments by @drashna

* Only define Eject in keymap

keyboards/bigswitch/config.h

@@ -0,0 +1,59 @@
+/*
+Copyright 2018 QMK Contributors
+
+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 CONFIG_H
+#define CONFIG_H
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID       0x1209
+#define PRODUCT_ID      0xB195
+#define DEVICE_VER      0x0001
+#define MANUFACTURER    flehrad
+#define PRODUCT         BigSwitch PCB
+#define DESCRIPTION     A single key board for Novelkeys Big Switch
+
+/* key matrix size */
+#define MATRIX_ROWS 1
+#define MATRIX_COLS 1
+
+/* key matrix pins */
+#define MATRIX_ROW_PINS { B5 }
+#define MATRIX_COL_PINS { B6 }
+#define UNUSED_PINS { }
+
+/* COL2ROW or ROW2COL */
+#define DIODE_DIRECTION ROW2COL
+
+/* Set 0 if debouncing isn't needed */
+#define DEBOUNCING_DELAY 50
+
+/* key combination for command */
+#define IS_COMMAND() ( \
+    false \
+)
+
+/* prevent stuck modifiers */
+#define PREVENT_STUCK_MODIFIERS
+
+#ifdef RGBLIGHT_ENABLE
+#define RGB_DI_PIN D3
+#define RGBLIGHT_ANIMATIONS
+#define RGBLED_NUM 5
+#endif
+
+#endif