[Keyboard] Botanical Keyboards FM2U (#8819)

* initial commit for fm2u keyboard

* add fm2u keyboard along with VIA keymap

* add meme LAYOUT support

* minor cleanups

* fixup layout macro names

keyboards/botanicalkeyboards/fm2u/fm2u.h

@@ -0,0 +1,46 @@
+/* Copyright 2020 mechmerlin
+ *
+ * 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_100u( \
+    k00 \
+) \
+{ \
+    { k00 } \
+}
+
+#define LAYOUT_125u LAYOUT_100u
+#define LAYOUT_150u LAYOUT_100u
+#define LAYOUT_175u LAYOUT_100u
+#define LAYOUT_200u LAYOUT_100u
+#define LAYOUT_225u LAYOUT_100u
+#define LAYOUT_275u LAYOUT_100u
+#define LAYOUT_300u LAYOUT_100u
+#define LAYOUT_600u LAYOUT_100u
+#define LAYOUT_625u LAYOUT_100u
+#define LAYOUT_700u LAYOUT_100u
+#define LAYOUT_iso  LAYOUT_100u