Keyboard: Add support for the KBD4x (#4036)

* Generate a new project for the KBD4x

* Specify the possible layouts for the KBD4x - MIT and grid

* Fill out the readme for the KBD4x

* Configure the default keymap and wiring configuration as specified on http://qmkeyboard.cn/

* Add info.json for QMK Configurator

* Enable backlight support for the KBD4x

* Standardise on LAYOUT_planck_mit/LAYOUT_ortho_4x12 layout names

* Add whitespace so the Readme will render correctly

* Disable mouse keys support for the KBD4x to make the firmware small enough

1 files changed, 112 insertions, 0 deletions

diff --git a/keyboards/kbd4x/info.json b/keyboards/kbd4x/info.json
new file mode 100644
index 000000000..78d011e2c
--- /dev/null
+++ b/keyboards/kbd4x/info.json
@@ -0,0 +1,112 @@
+{
+    "keyboard_name": "kbd4x",
+    "url": "",
+    "maintainer": "qmk",
+    "width": 14,
+    "height": 4,
+    "layouts": {
+        "LAYOUT_planck_mit": {
+            "layout": [
+              {"label":"ESC", "x":0, "y":0},
+              {"label":"Q", "x":1, "y":0},
+              {"label":"W", "x":2, "y":0},
+              {"label":"E", "x":3, "y":0},
+              {"label":"R", "x":4, "y":0},
+              {"label":"T", "x":5, "y":0},
+              {"label":"Y", "x":6, "y":0},
+              {"label":"U", "x":7, "y":0},
+              {"label":"I", "x":8, "y":0},
+              {"label":"O", "x":9, "y":0},
+              {"label":"P", "x":10, "y":0},
+              {"label":"BKSP", "x":11, "y":0},
+              {"label":"TAB", "x":0, "y":1},
+              {"label":"A", "x":1, "y":1},
+              {"label":"S", "x":2, "y":1},
+              {"label":"D", "x":3, "y":1},
+              {"label":"F", "x":4, "y":1},
+              {"label":"G", "x":5, "y":1},
+              {"label":"H", "x":6, "y":1},
+              {"label":"J", "x":7, "y":1},
+              {"label":"K", "x":8, "y":1},
+              {"label":"L", "x":9, "y":1},
+              {"label":";", "x":10, "y":1},
+              {"label":"'", "x":11, "y":1},
+              {"label":"SHIFT", "x":0, "y":2},
+              {"label":"Z", "x":1, "y":2},
+              {"label":"X", "x":2, "y":2},
+              {"label":"C", "x":3, "y":2},
+              {"label":"V", "x":4, "y":2},
+              {"label":"B", "x":5, "y":2},
+              {"label":"N", "x":6, "y":2},
+              {"label":"M", "x":7, "y":2},
+              {"label":",", "x":8, "y":2},
+              {"label":".", "x":9, "y":2},
+              {"label":"UP", "x":10, "y":2},
+              {"label":"ENTER", "x":11, "y":2},
+              {"label":"LCTRL", "x":0, "y":3},
+              {"label":"LGUI", "x":1, "y":3},
+              {"label":"1", "x":2, "y":3},
+              {"label":"2", "x":3, "y":3},
+              {"label":"3", "x":4, "y":3},
+              {"label":"SPACE", "x":5, "y":3, "w":2},
+              {"label":"MO(1)", "x":7, "y":3},
+              {"label":"/", "x":8, "y":3},
+              {"label":"LEFT", "x":9, "y":3},
+              {"label":"DOWN", "x":10, "y":3},
+              {"label":"RIGHT", "x":11, "y":3},
+            ]
+        },
+        "LAYOUT_ortho_4x12": {
+            "layout": [
+              {"label":"ESC", "x":0, "y":0},
+              {"label":"Q", "x":1, "y":0},
+              {"label":"W", "x":2, "y":0},
+              {"label":"E", "x":3, "y":0},
+              {"label":"R", "x":4, "y":0},
+              {"label":"T", "x":5, "y":0},
+              {"label":"Y", "x":6, "y":0},
+              {"label":"U", "x":7, "y":0},
+              {"label":"I", "x":8, "y":0},
+              {"label":"O", "x":9, "y":0},
+              {"label":"P", "x":10, "y":0},
+              {"label":"BKSP", "x":11, "y":0},
+              {"label":"TAB", "x":0, "y":1},
+              {"label":"A", "x":1, "y":1},
+              {"label":"S", "x":2, "y":1},
+              {"label":"D", "x":3, "y":1},
+              {"label":"F", "x":4, "y":1},
+              {"label":"G", "x":5, "y":1},
+              {"label":"H", "x":6, "y":1},
+              {"label":"J", "x":7, "y":1},
+              {"label":"K", "x":8, "y":1},
+              {"label":"L", "x":9, "y":1},
+              {"label":";", "x":10, "y":1},
+              {"label":"'", "x":11, "y":1},
+              {"label":"SHIFT", "x":0, "y":2},
+              {"label":"Z", "x":1, "y":2},
+              {"label":"X", "x":2, "y":2},
+              {"label":"C", "x":3, "y":2},
+              {"label":"V", "x":4, "y":2},
+              {"label":"B", "x":5, "y":2},
+              {"label":"N", "x":6, "y":2},
+              {"label":"M", "x":7, "y":2},
+              {"label":",", "x":8, "y":2},
+              {"label":".", "x":9, "y":2},
+              {"label":"UP", "x":10, "y":2},
+              {"label":"ENTER", "x":11, "y":2},
+              {"label":"LCTRL", "x":0, "y":3},
+              {"label":"LGUI", "x":1, "y":3},
+              {"label":"1", "x":2, "y":3},
+              {"label":"2", "x":3, "y":3},
+              {"label":"3", "x":4, "y":3},
+              {"label":"SPACE", "x":5, "y":3},
+              {"label":"MO(2)", "x":6, "y":3},
+              {"label":"MO(1)", "x":7, "y":3},
+              {"label":"/", "x":8, "y":3},
+              {"label":"LEFT", "x":9, "y":3},
+              {"label":"DOWN", "x":10, "y":3},
+              {"label":"RIGHT", "x":11, "y":3},
+            ]
+        }
+    }
+}