add unsplit (#10892)

Co-authored-by: Drashna Jaelre <drashna@live.com>
Co-authored-by: Erovia <Erovia@users.noreply.github.com>
Co-authored-by: Swiftrax <swiftrax@gmail.com>

keyboards/handwired/swiftrax/unsplit/config.h

@@ -0,0 +1,45 @@
+/*
+Copyright 2020 Swiftrax <swiftrax@gmail.com>
+
+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       0x04D8
+#define PRODUCT_ID      0xEAB1
+#define DEVICE_VER      0x0001
+#define MANUFACTURER    Swiftrax
+#define PRODUCT         UnSplit
+
+/* key matrix size */
+#define MATRIX_ROWS 4
+#define MATRIX_COLS 12
+
+// ROWS: Top to bottom, COLS: Left to right
+
+#define MATRIX_ROW_PINS { B6, D7, B5, B4  }
+#define MATRIX_COL_PINS { D1, D2, D3, D5, D4, D6, C6, C7, F6, F5, F4, F1 }
+
+/* COL2ROW or ROW2COL */
+#define DIODE_DIRECTION COL2ROW
+
+/* define if matrix has ghost */
+//#define MATRIX_HAS_GHOST
+
+/* Set 0 if debouncing isn't needed */
+#define DEBOUNCE 5