[Keyboard] adding support for new keyboard Dawn (#11564)

* initial commit Dawn keyboard

* fixing some matrix

* final tweaks to keymaps and info.json layout

* fix info.json missing delimiter

* missing elements in info.json layout, resolved through lint

* fixed missing link image in readme

* Update keyboards/mechstudio/dawn/readme.md

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

Co-authored-by: David <david@tarpit.be>
Co-authored-by: Ryan <fauxpark@gmail.com>

keyboards/mechstudio/dawn/config.h

@@ -0,0 +1,48 @@
+/* Copyright 2020 David Dejaeghere
+ *
+ * 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"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID       0x4D53
+#define PRODUCT_ID      0x0004
+#define DEVICE_VER      0x0004
+#define MANUFACTURER    Mech Studio
+#define PRODUCT         Dawn
+
+/* key matrix size */
+#define MATRIX_ROWS 6
+#define MATRIX_COLS 15
+
+// ROWS: Top to bottom, COLS: Left to right
+
+#define MATRIX_ROW_PINS {B1,B2,B3,D1,D6,D4}
+#define MATRIX_COL_PINS {F0,F1,F4,F5,F6,F7,C7,C6,B6,B5,B4,D7,D5,D3,D2}
+#define UNUSED_PINS {B0,B7,D0,E6}
+
+/* COL2ROW, ROW2COL*/
+#define DIODE_DIRECTION COL2ROW
+
+/* set 0 if debouncing is not needed */
+#define DEBOUNCE 5
+
+/* define if matrix has ghost (lacks anti-ghosting diodes) */
+//#define MATRIX_HAS_GHOST
+
+#define QMK_ESC_OUTPUT F0 // usually COL
+#define QMK_ESC_INPUT B1 // usually ROW