[Keyboard] Added IVY macropad (#6211)

* Added initial files for the Adron  3-key macro pad

* Refactor of "adron_pad" to "ivy", cleaned up the readme and removed un-needed keymap as well.

* Made suggested changes to commit for PR

* Removed unneeded define block from SUBPROJECT_rev1 as it is redundant (Thanks drashna ;) )

keyboards/ivy/rev1/config.h

@@ -0,0 +1,27 @@
+/*
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+
+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
+
+#define DEVICE_VER      0x0001
+
+/* Let's Macro V2 pin-out */
+#define MATRIX_ROW_PINS { F1, B2, D3 }
+#define MATRIX_COL_PINS { F5, B3, D5 }
+#define UNUSED_PINS
+
+#define DIODE_DIRECTION COL2ROW

keyboards/ivy/rev1/rev1.c

@@ -0,0 +1,5 @@
+#include "ivy.h"
+
+void matrix_init_kb(void) {
+	matrix_init_user();
+};

keyboards/ivy/rev1/rev1.h

@@ -0,0 +1,14 @@
+#pragma once
+
+#include "ivy.h"
+
+#define LAYOUT( \
+	K00, \
+    K01, \
+    K02  \
+	) \
+	{ \
+		{ K00, KC_NO, KC_NO }, \
+		{ KC_NO, K01, KC_NO }, \
+		{ KC_NO, KC_NO, K02 }, \
+	}

keyboards/ivy/rev1/rules.mk

@@ -0,0 +1,3 @@
+BACKLIGHT_ENABLE = yes
+RGBLIGHT_ENABLE = no
+AUDIO_ENABLE = no