[Keyboard] Add kudox game keyboard (#6460)

* Add configurations for Kudox Game Keyboard rev1.

* Modified Kudox Game Keyboard readme and keymap.

* Remove unnecessary codes.

* Set BootLoader caterina.

* Remove wrong settings on rules.mk.

* Clean up config.h.

* Modified MATRIX_ROWS on kudox_game/rev1/config.h.

* Modified RGB_LED_NUM on kudox_game/rev1/config.h.

keyboards/kudox_game/info.json

@@ -0,0 +1,39 @@
+{
+    "keyboard_name": "Kudox Game Keyboard",
+    "url": "",
+    "maintainer": "Kumao Kobo",
+    "width": 7.5,
+    "height": 6.75,
+    "layouts": {
+        "LAYOUT": {
+            "layout": [
+                {"label":"Esc", "x":0, "y":0},
+                {"label":"1", "x":1.5, "y":0},
+                {"label":"2", "x":2.5, "y":0},
+                {"label":"3", "x":3.5, "y":0},
+                {"label":"4", "x":4.5, "y":0},
+                {"label":"5", "x":5.5, "y":0},
+                {"label":"Q", "x":1.75, "y":1},
+                {"label":"W", "x":2.75, "y":1},
+                {"label":"E", "x":3.75, "y":1},
+                {"label":"R", "x":4.75, "y":1},
+                {"label":"T", "x":5.75, "y":1},
+                {"label":"GUI", "x":0, "y":2},
+                {"label":"Alt", "x":1, "y":2},
+                {"label":"A", "x":2, "y":2},
+                {"label":"S", "x":3, "y":2},
+                {"label":"D", "x":4, "y":2},
+                {"label":"F", "x":5.25, "y":2},
+                {"label":"G", "x":6.25, "y":2},
+                {"label":"Shift", "x":0, "y":3, "w":1.5},
+                {"label":"Z", "x":1.5, "y":3},
+                {"label":"X", "x":3.75, "y":3},
+                {"label":"C", "x":4.75, "y":3},
+                {"label":"V", "x":5.75, "y":3},
+                {"label":"Ctrl", "x":0, "y":4, "w":1.5},
+                {"label":"Layer", "x":5.5, "y":4.25, "h":1.5},
+                {"x":6.5, "y":4.75, "h":2}
+            ]
+        }
+    }
+}