This keyboard comes stock with a forked version of QMK that is quite
outdated at this point.
I decided to go with the name `sq80` to stay in line with the existing
`sqx`, and "SQ80" has been used in some of the communication from the
creators.
* added SQUARE.X keyboard from the iNETT Studio
* split to two sub directories
* Apply suggestions from code review
* Update keyboards/inett_studio/sqx/universal/universal.h
* Apply suggestions from code review
* update the matrix control keycodes settings
* use the offical macro to the rgb matrix control
* fixed led position issue
* Apply suggestions from code review
* removed the redundant #endif
* update default keymap
* Apply suggestions from code review
* add license header
