[Keyboard] bstk100 handwired (#14158)
* General: Initial commit for bstk100
* bstk100 custom keyboard firmware
* fix Bootloader section
* fix "Pad 0" key twice
* delete via config
* fix readme.md key layout
* add via keymap
* fix readme.md info
* remove keymap.json
* Suggested change readme.md
* moved to handwired folder
* fix readme.md for handwired
* fix info.json
* Suggested change readme.md
* Update keyboards/handwired/bstk100/rules.mk
fix requested changes
* Update keyboards/handwired/bstk100/rules.mk
fix requested changes
* Update keyboards/handwired/bstk100/info.json
* Update keyboards/handwired/bstk100/rules.mk
604fca4aa9