[Keyboard] Splitreus62 (#8383)
* added splitreus62
* fixed rules.mk
* Update keymap.c
* Updated RGBLIGHT_ENABLE
* Update readme.md
* Update readme.md
* Update readme.md
* Update readme.md
* Update readme.md
* Update readme.md
* Updated NKRO
* added splitreus62
* fixed rules.mk
* Update keymap.c
* Updated RGBLIGHT_ENABLE
* Update readme.md
* Update readme.md
* Update readme.md
* Update readme.md
* Update readme.md
* Update readme.md
* Updated NKRO
* Update config.h
* Update keyboards/splitreus62/rules.mk
* Update keyboards/splitreus62/splitreus62.c
* Update keyboards/splitreus62/splitreus62.h
* Update keyboards/splitreus62/readme.md
* Update keyboards/splitreus62/rules.mk
* Update config.h
* Update keyboards/splitreus62/readme.md
* Update keyboards/splitreus62/rules.mk
* Update keyboards/splitreus62/splitreus62.h
* Update keyboards/splitreus62/keymaps/default/keymap.c
* Update keyboards/splitreus62/readme.md