[Keyboard] 40percentclub 4 pack macropad keyboard (#7088)

* 4 pack macropad layout added

* Update keyboards/40percentclub/4pack/keymaps/default/readme.md

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

* Update keyboards/40percentclub/4pack/readme.md

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

* Update keyboards/40percentclub/4pack/readme.md

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

* Update keyboards/40percentclub/4pack/readme.md

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

* Update keyboards/40percentclub/4pack/readme.md

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

* remove unnecessary comments, remove firmware impact numbers, align comments

* remove unnecessary readme paragraphs

* pinout changed with direct pins instead of matrix

* typo fixed on led method name

* leds are now handled by backlight feture, led.c removed, info.json added, flash instructions updated

1 files changed, 33 insertions, 0 deletions

diff --git a/keyboards/40percentclub/4pack/4pack.h b/keyboards/40percentclub/4pack/4pack.h
new file mode 100644
index 0000000000..1340300ace
--- /dev/null
+++ b/keyboards/40percentclub/4pack/4pack.h
@@ -0,0 +1,33 @@
+/* Copyright 2019 Arda Kilicdagi
+ *
+ * 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 "quantum.h"
+
+/* This a shortcut to help you visually see your layout.
+ *
+ * The first section contains all of the arguments representing the physical
+ * layout of the board and position of the keys.
+ *
+ * The second converts the arguments into a two-dimensional array which
+ * represents the switch matrix.
+ */
+#define LAYOUT( \
+    k00, k01, k02, k03 \
+) \
+{ \
+    { k00, k01, k02, k03 }, \
+}