[Keyboard] Add Snatchpad keyboard (#16330)

Co-authored-by: Drashna Jaelre <drashna@live.com>
Co-authored-by: Ryan <fauxpark@gmail.com>
Co-authored-by: xia0 <xiao@morgan.net.au>

keyboards/handwired/snatchpad/info.json

@@ -0,0 +1,21 @@
+{
+    "keyboard_name": "snatchpad",
+    "url": "",
+    "maintainer": "xia0",
+    "layouts": {
+        "LAYOUT": {
+            "layout": [
+                {"x": 0, "y": 0},
+                {"x": 1, "y": 0},
+                {"x": 2, "y": 0},
+
+                {"x": 0, "y": 1},
+                {"x": 1, "y": 1},
+                {"x": 2, "y": 1},
+
+                {"x": 0, "y": 1},
+                {"x": 2, "y": 1}
+            ]
+        }
+    }
+}