cKeys Handwire 101 Refactor (#13879)

* update info.json

- use human-friendly formatting
- remove `key_count` key

* rename LAYOUT to LAYOUT_ortho_4x4

* refactor default keymap

- add license header
- qmk cformat pass
- keycode grid alignment

* remove empty config.h file from default keymap

* update Manufacturer and Product strings

* tidy up handwire_101.c

- add license header
- remove boilerplate functions

* tidy up handwire_101.h

- add license header
- remove instructive comment

* minor rules.mk tidy-up

- remove Bootloader selection sample comments

* rewrite SEND_STRING() statements per fauxpark

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

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

keyboards/ckeys/handwire_101/info.json

@@ -1,13 +1,35 @@
 {
-  "keyboard_name": "cKeys Handwire 101",
-  "url": "https://ckeys.org/slides/handwire/",
-  "maintainer": "brandenbyers",
-  "width": 4,
-  "height": 4,
-  "layouts": {
-    "LAYOUT_ortho_4x4": {
-      "key_count": 16,
-      "layout": [{"x":0, "y":0}, {"x":1, "y":0}, {"x":2, "y":0}, {"x":3, "y":0}, {"x":0, "y":1}, {"x":1, "y":1}, {"x":2, "y":1}, {"x":3, "y":1}, {"x":0, "y":2}, {"x":1, "y":2}, {"x":2, "y":2}, {"x":3, "y":2}, {"x":0, "y":3}, {"x":1, "y":3}, {"x":2, "y":3}, {"x":3, "y":3}]
+    "keyboard_name": "cKeys Handwire 101",
+    "url": "https://ckeys.org/slides/handwire/",
+    "maintainer": "brandenbyers",
+    "width": 4,
+    "height": 4,
+    "layout_aliases": {
+        "LAYOUT": "LAYOUT_ortho_4x4"
+    },
+    "layouts": {
+        "LAYOUT_ortho_4x4": {
+            "layout": [
+                {"x":0, "y":0},
+                {"x":1, "y":0},
+                {"x":2, "y":0},
+                {"x":3, "y":0},
+
+                {"x":0, "y":1},
+                {"x":1, "y":1},
+                {"x":2, "y":1},
+                {"x":3, "y":1},
+
+                {"x":0, "y":2},
+                {"x":1, "y":2},
+                {"x":2, "y":2},
+                {"x":3, "y":2},
+
+                {"x":0, "y":3},
+                {"x":1, "y":3},
+                {"x":2, "y":3},
+                {"x":3, "y":3}
+            ]
+        }
     }
-  }
 }