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/rev1/info.json

@@ -0,0 +1,13 @@
+{
+  "keyboard_name": "Zinc rev.1",
+  "url": "https://github.com/monksoffunk/zinc",
+  "maintainer": "monksoffunk",
+  "width": 15,
+  "height": 4,
+  "layouts": {
+    "LAYOUT": {
+      "key_count": 48,
+      "layout": [{"x":0, "y":0}, {"x":1, "y":0}, {"x":2, "y":0}, {"x":3, "y":0}, {"x":4, "y":0}, {"x":5, "y":0}, {"x":9, "y":0}, {"x":10, "y":0}, {"x":11, "y":0}, {"x":12, "y":0}, {"x":13, "y":0}, {"x":14, "y":0}, {"x":0, "y":1}, {"x":1, "y":1}, {"x":2, "y":1}, {"x":3, "y":1}, {"x":4, "y":1}, {"x":5, "y":1}, {"x":9, "y":1}, {"x":10, "y":1}, {"x":11, "y":1}, {"x":12, "y":1}, {"x":13, "y":1}, {"x":14, "y":1}, {"x":0, "y":2}, {"x":1, "y":2}, {"x":2, "y":2}, {"x":3, "y":2}, {"x":4, "y":2}, {"x":5, "y":2}, {"x":9, "y":2}, {"x":10, "y":2}, {"x":11, "y":2}, {"x":12, "y":2}, {"x":13, "y":2}, {"x":14, "y":2}, {"x":0, "y":3}, {"x":1, "y":3}, {"x":2, "y":3}, {"x":3, "y":3}, {"x":4, "y":3}, {"x":5, "y":3}, {"x":9, "y":3}, {"x":10, "y":3}, {"x":11, "y":3}, {"x":12, "y":3}, {"x":13, "y":3}, {"x":14, "y":3}]
+    }
+  }
+}