Add support for the DURGOD Taurus K320 keyboard (#11399)

* Initial support for Durgod K320 with BootMagic Lite

- Adding missing files
- Add Unicode Map Support & new user keymap
- Remove personalized features from Default keymap
- Added Unicode Map to both Default and kuenhlee keymap.c
- Updated readme.md
- Added additional Fn Shortcut keys

* Additional support for Durgod K320

- Simplifying default keymap
- Renaming durgod_k320 => durgod/k320
- Removing copy of ST_NUCLEO64_F070RB from K320. Replacing with local board.h
- Adding Mac keyboard layout for K320 as alternative via Fn+F12
- Implementing Windows Key lock on K320
- Cleaning up duplicated core functionality
- Adding default_toggle_mac_windows keymap with:
  - Ability to toggle between Windows and MacOS layout
  - Mac Media Lock functionality.

* Updating K320 keymap readme

Co-authored-by: kuenhlee <eos.camera.lee@gmail.com>

keyboards/durgod/k320/config.h

@@ -0,0 +1,53 @@
+/*
+Copyright 2021 kuenhlee and Don Kjer
+
+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       0xD60D
+#define PRODUCT_ID      0x3200
+#define DEVICE_VER      0x0001
+#define MANUFACTURER    Hoksi Technology
+#define PRODUCT         DURGOD Taurus K320 (QMK)
+
+/* key matrix size */
+#define MATRIX_ROWS 7
+#define MATRIX_COLS 16
+
+#define MATRIX_ROW_PINS { A0, A1, A2, A3, A4, A5, A6 }
+#define MATRIX_COL_PINS { C4, C5, B0, B1, B2, B10, B11, B12, B13, B14, B15, C6, C7, C10, C11, C12 }
+
+/* COL2ROW, ROW2COL*/
+#define DIODE_DIRECTION ROW2COL
+
+/* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
+#define DEBOUNCE 7
+
+/* Bootmagic Lite key configuration */
+#define EARLY_INIT_PERFORM_BOOTLOADER_JUMP TRUE
+#define BOOTMAGIC_LITE_ROW                 0
+#define BOOTMAGIC_LITE_COLUMN              0
+
+/* LED indicator pins */
+#define LED_CAPS_LOCK_PIN   C9
+#define LED_SCROLL_LOCK_PIN A8
+#define LED_WIN_LOCK_PIN    A9
+#define LED_MR_LOCK_PIN     A10
+#define LED_PIN_ON_STATE    0
+