[Keyboard] Add PLX Keyboard (#12954)

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

keyboards/plx/config.h

@@ -0,0 +1,39 @@
+/* Copyright 2020 Peac Design and Basekeys
+ *
+ * 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      0xE972
+#define DEVICE_VER      0x0001
+#define MANUFACTURER    Peac Design
+#define PRODUCT         PLX
+
+/* key matrix size */
+#define MATRIX_ROWS 5
+#define MATRIX_COLS 15
+
+/* key matrix pins */
+
+#define MATRIX_ROW_PINS { B0, B1, B2, B3, B7 }
+#define MATRIX_COL_PINS { D5, D3, D2, D1, D0, D4, D6, D7, B4, B5, B6, C6, C7, F1, F0 }
+
+/* COL2ROW, ROW2COL*/
+#define DIODE_DIRECTION COL2ROW
+