[Keyboard] add Pancake Keyboard (#6610)
* Create readme.md
* Add files via upload
* Create readme.md
* Add files via upload
* Create readme.md
* Add files via upload
* Create readme.md
* Add files via upload
* Update keyboards/pancake/info.json
Co-Authored-By: noroadsleft <18669334+noroadsleft@users.noreply.github.com>
* Update keyboards/pancake/keymaps/default/keymap.c
Co-Authored-By: noroadsleft <18669334+noroadsleft@users.noreply.github.com>
* Update keyboards/pancake/keymaps/default/keymap.c
Co-Authored-By: noroadsleft <18669334+noroadsleft@users.noreply.github.com>
* Update keyboards/pancake/readme.md
Co-Authored-By: noroadsleft <18669334+noroadsleft@users.noreply.github.com>
* Update keyboards/pancake/keymaps/default/keymap.c
Co-Authored-By: noroadsleft <18669334+noroadsleft@users.noreply.github.com>
* Update keyboards/pancake/info.json
Co-Authored-By: noroadsleft <18669334+noroadsleft@users.noreply.github.com>
* Update keyboards/pancake/feather/rules.mk
Co-Authored-By: noroadsleft <18669334+noroadsleft@users.noreply.github.com>
* Update keyboards/pancake/promicro/rules.mk
Co-Authored-By: noroadsleft <18669334+noroadsleft@users.noreply.github.com>
* Update keyboards/pancake/keymaps/default/keymap.c
Co-Authored-By: noroadsleft <18669334+noroadsleft@users.noreply.github.com>
* Update rules.mk
* Update rules.mk
* Update pancake.h