[Keyboard] Add CannonKeys Rekt1800 keyboard (qmk#7760)

* Add Rekt1800 keyboards

* Update keyboards/cannonkeys/rekt1800/config.h

* Update keyboards/cannonkeys/rekt1800/info.json

* Apply suggestions from code review

* Apply suggestions from code review

* Remove line

* Apply suggestions from code review

keyboards/cannonkeys/rekt1800/config.h

@@ -0,0 +1,74 @@
+/*
+Copyright 2015 Jun Wako <[email protected]>
+
+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/>.
+*/
+
+#pragma once
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID       0xCA04
+#define PRODUCT_ID      0x2377
+#define DEVICE_VER      0x0001
+#define MANUFACTURER CannonKeys
+#define PRODUCT Rekt1800
+#define DESCRIPTION Rekt1800 Keyboard
+
+/* key matrix size */
+#define MATRIX_ROWS 6
+#define MATRIX_COLS 19
+
+#define MATRIX_COL_PINS { B12, A14, A15, B3, B4, B5, B6, B7, B8, B9, A7, B0, B1, B2, B10, A3, A4, A5, C15 }
+#define MATRIX_ROW_PINS { C13, C14, A0, A1, A2, B11 }
+#define DIODE_DIRECTION COL2ROW
+
+#define BACKLIGHT_PIN           A6
+#define BACKLIGHT_PWM_DRIVER    PWMD3
+#define BACKLIGHT_PWM_CHANNEL   1
+#define BACKLIGHT_PAL_MODE      1
+#define BACKLIGHT_LEVELS 6
+#define BACKLIGHT_BREATHING
+#define BREATHING_PERIOD 6
+
+/* define if matrix has ghost */
+//#define MATRIX_HAS_GHOST
+
+/* Set 0 if debouncing isn't needed */
+#define DEBOUNCE    5
+
+/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
+#define LOCKING_SUPPORT_ENABLE
+/* Locking resynchronize hack */
+#define LOCKING_RESYNC_ENABLE
+
+
+#define DYNAMIC_KEYMAP_LAYER_COUNT 3
+
+/*
+ * Feature disable options
+ *  These options are also useful to firmware size reduction.
+ */
+
+/* disable debug print */
+//#define NO_DEBUG
+
+/* disable print */
+//#define NO_PRINT
+
+/* disable action features */
+//#define NO_ACTION_LAYER
+//#define NO_ACTION_TAPPING
+//#define NO_ACTION_ONESHOT
+//#define NO_ACTION_MACRO
+//#define NO_ACTION_FUNCTION