[Keyboard] CapsUnlocked CU80 (#8257)
* Initial commit for CU80
* Added iso and ansi to .json
* Update keyboards/cu80/config.h
Remove "Custom matrix"
* Update keyboards/cu80/config.h
* Update keyboards/cu80/config.h
* Update keyboards/cu80/config.h
* Update keyboards/cu80/cu80.h
* Update keyboards/cu80/rules.mk
* Update keyboards/cu80/keymaps/default/keymap.c
* Update keyboards/cu80/rules.mk
* Update keyboards/cu80/rules.mk
* Update keyboards/cu80/cu80.h
* Update keyboards/cu80/readme.md
* Update keyboards/cu80/keymaps/default/keymap.c
* Update keyboards/cu80/rules.mk
* Update keyboards/cu80/rules.mk
* Update keyboards/cu80/cu80.h
* Update keyboards/cu80/cu80.h
* Update keyboards/cu80/cu80.h
* Update keyboards/cu80/info.json
* Update keyboards/cu80/info.json
* Update keyboards/cu80/info.json
* Update keyboards/cu80/info.json
* Update keyboards/cu80/keymaps/default/keymap.c
* Update keyboards/cu80/rules.mk