[Keyboard] Add Discipad, Update Zadig doc for USBaspLoader (#6771)

* add discipad

* Update driver_installation_zadig.md

* Update keyboards/coseyfannitutti/discipad/info.json

Co-Authored-By: noroadsleft <18669334+noroadsleft@users.noreply.github.com>

* Update keyboards/coseyfannitutti/discipad/readme.md

Co-Authored-By: noroadsleft <18669334+noroadsleft@users.noreply.github.com>

* Update rules.mk

* Update keyboards/coseyfannitutti/discipad/rules.mk

Co-Authored-By: noroadsleft <18669334+noroadsleft@users.noreply.github.com>

* Update docs/driver_installation_zadig.md

Co-Authored-By: fauxpark <fauxpark@gmail.com>

* Update keyboards/coseyfannitutti/discipad/discipad.c

Co-Authored-By: fauxpark <fauxpark@gmail.com>

* Update docs/driver_installation_zadig.md

Co-Authored-By: fauxpark <fauxpark@gmail.com>

* Update docs/driver_installation_zadig.md

Co-Authored-By: fauxpark <fauxpark@gmail.com>

* Update rules.mk

* Update discipad.c

* Update driver_installation_zadig.md

* Update config.h

keyboards/coseyfannitutti/discipad/keymaps/default/keymap.c

@@ -0,0 +1,27 @@
+/* Copyright 2019 COSEYFANNITUTTI
+ *
+ * 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/>.
+ */
+#include QMK_KEYBOARD_H
+
+#define _BL 0
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+  [_BL] = LAYOUT_numpad_5x4(
+      KC_NLCK, KC_PSLS, KC_PAST, KC_PMNS, 
+      KC_P7,   KC_P8,   KC_P9,            
+      KC_P4,   KC_P5,   KC_P6,   KC_PPLS, 
+      KC_P1,   KC_P2,   KC_P3,            
+      KC_P0,   KC_PDOT,          KC_PENT  )
+};