[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/4/4.h

@@ -12,7 +12,7 @@
 #endif
 #endif
 
-#define LAYOUT( \
+#define LAYOUT_split_4x7_4( \
   L00, L01, L02, L03, L04, L05, L06,  R00, R01, R02, R03, R04, R05, R06, \
   L10, L11, L12, L13, L14, L15, L16,  R10, R11, R12, R13, R14, R15, R16, \
   L20, L21, L22, L23, L24, L25, L26,  R20, R21, R22, R23, R24, R25, R26, \
@@ -32,17 +32,4 @@
     { KC_NO, KC_NO, KC_NO, R43, R42, R41, R40 } \
   }
 
-#define LAYOUT_kc( \
-  L00, L01, L02, L03, L04, L05, L06,  R00, R01, R02, R03, R04, R05, R06, \
-  L10, L11, L12, L13, L14, L15, L16,  R10, R11, R12, R13, R14, R15, R16, \
-  L20, L21, L22, L23, L24, L25, L26,  R20, R21, R22, R23, R24, R25, R26, \
-  L30, L31, L32, L33, L34, L35, L36,  R30, R31, R32, R33, R34, R35, R36, \
-                 L40, L41, L42, L43,  R40, R41, R42, R43 \
-  ) \
-  LAYOUT( \
-    KC_##L00, KC_##L01, KC_##L02, KC_##L03, KC_##L04, KC_##L05, KC_##L06,   KC_##R00, KC_##R01, KC_##R02, KC_##R03, KC_##R04, KC_##R05, KC_##R06, \
-    KC_##L10, KC_##L11, KC_##L12, KC_##L13, KC_##L14, KC_##L15, KC_##L16,   KC_##R10, KC_##R11, KC_##R12, KC_##R13, KC_##R14, KC_##R15, KC_##R16, \
-    KC_##L20, KC_##L21, KC_##L22, KC_##L23, KC_##L24, KC_##L25, KC_##L26,   KC_##R20, KC_##R21, KC_##R22, KC_##R23, KC_##R24, KC_##R25, KC_##R26, \
-    KC_##L30, KC_##L31, KC_##L32, KC_##L33, KC_##L34, KC_##L35, KC_##L36,   KC_##R30, KC_##R31, KC_##R32, KC_##R33, KC_##R34, KC_##R35, KC_##R36, \
-                                  KC_##L40, KC_##L41, KC_##L42, KC_##L43,   KC_##R40, KC_##R41, KC_##R42, KC_##R43 \
-  )
+#define LAYOUT LAYOUT_split_4x7_4