[Keyboard] 8 pack (#6031)

* 8-Pack Macropad

* Added MANUFACTUTER to config.h

* Fix the mirrored keymaps by creating rev1.1 and rev1.2 layouts, then using them in the keymaps

* fixes from code review comments

* Use revisions to manage the different layouts for rev1.1 and rev1.2

* Add DEFAULT_FOLDER to fix default build failures

* code review comments fixes

* code review comments fixes

keyboards/8pack/rev11/config.h

@@ -0,0 +1,3 @@
+#pragma once
+
+#define DEVICE_VER      0x0001

keyboards/8pack/rev11/rev11.c

@@ -0,0 +1 @@
+#include "rev11.h"

keyboards/8pack/rev11/rev11.h

@@ -0,0 +1,11 @@
+#pragma once
+
+#include "8pack.h"
+
+#define LAYOUT( \
+    K00, K01, K02, K03, \
+	K10, K11, K12, K13 \
+) { \
+	{ K13, K12, K11, K10 }, \
+    { K03, K02, K01, K00 } \
+}