[Keyboard] add support for bigknob (#11291)

* add support for bigknob

Add support for bigknob macropad

* corrected files

* Apply suggestions from code review

Co-authored-by: Joel Challis <git@zvecr.com>

* corrected tap dance

* Update config.h

* correct image link

* Apply suggestions from code review

Co-authored-by: Ryan <fauxpark@gmail.com>

* added GPL headers

* Update readme.md

Co-authored-by: Joel Challis <git@zvecr.com>
Co-authored-by: Ryan <fauxpark@gmail.com>

keyboards/leafcutterlabs/bigknob/info.json

@@ -0,0 +1,12 @@
+{
+  "keyboard_name": "bigknob",
+  "url": "",
+  "maintainer": "qmk",
+  "width": 5,
+  "height": 1,
+  "layouts": {
+    "LAYOUT_ortho_1x5": {
+      "layout": [{"x":0, "y":0}, {"x":1, "y":0}, {"x":2, "y":0}, {"x":3, "y":0}, {"x":4, "y":0}]
+    }
+  }
+}