[Keyboard] Add cKeys' "The Dora" Board (#6469)

* Initial 4x5

* More board

* Update exboard

* Update

* Change name to thedora

* Update keyboards/ckeys/thedora/keymaps/default/keymap.c

Co-Authored-By: fauxpark <fauxpark@gmail.com>

* Update keyboards/ckeys/thedora/config.h

Co-Authored-By: fauxpark <fauxpark@gmail.com>

* Remove the slash

* Attempt at fixing moxygen line break issues

* Update keyboards/ckeys/thedora/config.h

Co-Authored-By: fauxpark <fauxpark@gmail.com>

* Add boilerplate

* Update keyboards/ckeys/thedora/config.h

Co-Authored-By: Drashna Jaelre <drashna@live.com>

keyboards/ckeys/thedora/info.json

@@ -0,0 +1,16 @@
+{
+  "keyboard_name": "The Dora Board.",
+  "url": "https://ckeys.org/slides/exboard",
+  "maintainer": "brandenbyers",
+  "width": 4,
+  "height": 4,
+  "layouts": {
+    "LAYOUT_ortho_4x5": {
+      "key_count": 20,
+      "layout": [{"x":0, "y":0}, {"x":1, "y":0}, {"x":2, "y":0}, {"x":3, "y":0}, {"x": 4, "y":0},
+                 {"x":0, "y":1}, {"x":1, "y":1}, {"x":2, "y":1}, {"x":3, "y":1}, {"x":4, "y":1},
+                 {"x":0, "y":2}, {"x":1, "y":2}, {"x":2, "y":2}, {"x":3, "y":2}, {"x":4, "y":2},
+                 {"x":0, "y":3}, {"x":1, "y":3}, {"x":2, "y":3}, {"x":3, "y":3}, {"x":4, "y":3}]
+    }
+  }
+}