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/rules.mk

@@ -2,13 +2,6 @@
 MCU = atmega32u4
 
 # Bootloader selection
-#   Teensy       halfkay
-#   Pro Micro    caterina
-#   Atmel DFU    atmel-dfu
-#   LUFA DFU     lufa-dfu
-#   QMK DFU      qmk-dfu
-#   ATmega32A    bootloadHID
-#   ATmega328P   USBasp
 BOOTLOADER = caterina
 
 # Build Options