[Keyboard] Pinky refactor (#11643)

* QMK Configurator layout support for Pinky

3-row and 4-row versions

* refactor default keymaps

- use an enum for layer names
- remove redundant definitions
- qmk cformat pass
- modify pinky/4 via keymap to mirror pinky/4 default functionality

* remove LAYOUT_kc macros

This usage is not endorsed by QMK as it has been found to be confusing to novice users.

* add VIA support to pinky/3

* update config.h files

Removes unnecessary definitions for Backlight, RGB Underglow, Magic config and MIDI.

* update main rules.mk file

Updates the rules.mk file to match the formatting of the current QMK-provided template. Removes sample bootloader comments, feature rules that are no longer included in the template, and updates the in-line comments.

* update and split keyboard readme

Updates the main readme file's formatting, adds instructions to access bootloader mode, and adds more specific readmes for each version.

* add line breaks between rows in the info.json files

* rename layout macros for Community Layout forward compatibility

The layouts of the Pinky3 and Pinky4 aren't currently Community Layouts, but support for them could be added with a rules.mk edit should the layouts be added to QMK.

keyboards/pinky/rules.mk

@@ -2,34 +2,24 @@
 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
 #   change yes to no to disable
 #
-BOOTMAGIC_ENABLE = no      # Virtual DIP switch configuration
-MOUSEKEY_ENABLE = no       # Mouse keys
-EXTRAKEY_ENABLE = no       # Audio control and System control
-CONSOLE_ENABLE = no        # Console for debug
-COMMAND_ENABLE = no        # Commands for debug and configuration
+BOOTMAGIC_ENABLE = no       # Virtual DIP switch configuration
+MOUSEKEY_ENABLE = no        # Mouse keys
+EXTRAKEY_ENABLE = no        # Audio control and System control
+CONSOLE_ENABLE = no         # Console for debug
+COMMAND_ENABLE = no         # Commands for debug and configuration
 # Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
 SLEEP_LED_ENABLE = no       # Breathing sleep LED during USB suspend
 # if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
 NKRO_ENABLE = no            # USB Nkey Rollover
-BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality on B7 by default
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
 RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
-MIDI_ENABLE = no            # MIDI support
-UNICODE_ENABLE = no         # Unicode
-BLUETOOTH_ENABLE = no       # Enable Bluetooth with the Adafruit EZ-Key HID
-AUDIO_ENABLE = no           # Audio output on port C6
-FAUXCLICKY_ENABLE = no      # Use buzzer to emulate clicky switches
+BLUETOOTH_ENABLE = no       # Enable Bluetooth
+AUDIO_ENABLE = no           # Audio output
 
 SPLIT_KEYBOARD = yes