[Keyboard] add new keyboard quick7 (#8670)

* add new keyboard quick7

* Update keyboards/yushakobo/quick7/keymaps/default/keymap.c

* Update keyboards/yushakobo/quick7/quick7.c

* Update keyboards/yushakobo/quick7/rules.mk

* Update keyboards/yushakobo/quick7/keymaps/default/keymap.c

* Update keyboards/yushakobo/quick7/readme.md

* Update keyboards/yushakobo/quick7/rules.mk

* Update keyboards/yushakobo/quick7/rules.mk

* Deleted unnecessary file.

* Comment added.

* Update keyboards/yushakobo/quick7/config.h

* Update keyboards/yushakobo/quick7/readme.md

* Update keyboards/yushakobo/quick7/keymaps/default/keymap.c

* Update keyboards/yushakobo/quick7/config.h

keyboards/yushakobo/quick7/quick7.h

@@ -0,0 +1,38 @@
+/* Copyright 2020 yushakobo
+ *
+ * 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 is 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, \
+    k10, k11, k12, \
+    k20, k21, k22 \
+) \
+{ \
+    { k00, k01, k02 }, \
+    { k10, k11, k12 }, \
+    { k20, k21, k22 }  \
+}