[Keyboard] Add Prime_EXL Plus to handwired (#8238)

* Add VIA support for Prime_L

* Update keyboards/primekb/prime_l/v1/config.h

* Add prime_exl_plus keyboard

* Temporary removal of prime_exl_plus

* Add Prime_EXL Plus, including VIA support

* Update keyboards/handwired/prime_exl_plus/readme.md

* Update keyboards/handwired/prime_exl_plus/readme.md

* Update keyboards/handwired/prime_exl_plus/readme.md

* Update keyboards/handwired/prime_exl_plus/rules.mk

* Update keyboards/handwired/prime_exl_plus/info.json

* Update keyboards/handwired/prime_exl_plus/info.json

* Update keyboards/handwired/prime_exl_plus/info.json

* Update keymap.c

* correct spacing of keymaps and layout macro. move indicator logic from user space to keyboard space

* further corrections to keymaps and layout macro.

* Update keyboards/handwired/prime_exl_plus/prime_exl_plus.c

* Update keyboards/handwired/prime_exl_plus/prime_exl_plus.c

* Update keyboards/handwired/prime_exl_plus/prime_exl_plus.c

* Update keyboards/handwired/prime_exl_plus/prime_exl_plus.c

* Update prime_exl_plus.c

* small edit to prime_exl_plus.c

keyboards/handwired/prime_exl_plus/config.h

@@ -0,0 +1,52 @@
+/*
+Copyright 2020 Holten Campbell
+
+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       0x5052
+#define PRODUCT_ID      0x6579
+#define DEVICE_VER      0x0001
+#define MANUFACTURER    PrimeKB
+#define PRODUCT         Prime_EXL Plus
+#define DESCRIPTION     Ergo with left numpad
+
+/* key matrix size */
+#define MATRIX_ROWS 10
+#define MATRIX_COLS 10
+
+/* Keyboard Matrix Assignments */
+#define MATRIX_ROW_PINS { D2, D6, B4, F1, E6, F0, F4, B5, D7, D3 }
+#define MATRIX_COL_PINS { F5, F6, F7, C7, C6, B6, B7, B3, D1, D0 }
+#define UNUSED_PINS
+
+/* COL2ROW, ROW2COL*/
+#define DIODE_DIRECTION COL2ROW
+
+#define RGB_DI_PIN D4
+#define RGBLED_NUM 10
+#define RGBLIGHT_ANIMATIONS
+
+/* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
+#define DEBOUNCE 5
+
+/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
+#define LOCKING_SUPPORT_ENABLE
+/* Locking resynchronize hack */
+#define LOCKING_RESYNC_ENABLE