Keyboard: Add new keyboard Zinc (#4245)

* Add Zinc keyboard

* Fix photo

* Fix readme.md

* Fix RGB LED init of monks/keymap.c

* Fix default keymap and readme.jp

* Fix change DEFS of RGB ANIMATIONS to LED_ANIMATIONS

* Add EOL

* Use serial_config_simpleapi.h

* Fix comment char

* Fix error handling in split_scomm.c : mtei works

* Fix keymaps

* Remove DISABLE_LEADER definition

* Remove pro_micro.h

* Add 2 spaces after Hardware name

* Fix keymaps
  - remove audio codes
  - change LAYOUT to LAYOUT_ortho_4X12
  - change "persistent_default_layer_set" to core function

* Use the Community Layouts feature
  -  with some clean up

keyboards/zinc/zinc.h

@@ -0,0 +1,14 @@
+#ifndef ZINC_H
+#define ZINC_H
+
+#ifdef KEYBOARD_zinc_reva
+    #include "reva.h"
+#endif
+#ifdef KEYBOARD_zinc_rev1
+    #include "rev1.h"
+#endif
+
+
+#include "quantum.h"
+
+#endif