[Keyboard] handwired/dactyl_manuform: add 6x7 version (#15704)

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

keyboards/handwired/dactyl_manuform/6x7/config.h

@@ -0,0 +1,40 @@
+/*
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+Copyright 2015 Jack Humbert
+
+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
+
+#include "config_common.h"
+
+#define PRODUCT_ID 0x3636
+#define DEVICE_VER 0x0001
+#define PRODUCT    Dactyl-Manuform (6x7)
+
+/* key matrix size */
+// Rows are doubled-up
+#define MATRIX_ROWS 14
+#define MATRIX_COLS 7
+
+// wiring of each half
+#define MATRIX_COL_PINS { D4, C6, D7, E6, B4, B5, B7 }
+#define MATRIX_ROW_PINS { F5, F6, F7, B1, B3, B2, B6 }
+
+#define DIODE_DIRECTION COL2ROW
+
+// WS2812 RGB LED strip input and number of LEDs
+#define RGB_DI_PIN D3
+#define RGBLED_NUM 12