* Porting the mini42 to Vial for the first time.
* adding LTO_ENABLE=yes
* Tweaking Via(l) settings
* Set Via to v2 with lighting control disabled
* Adding GPL copyright notices to files
* Tidying things for a PR
* Fix formatting of json file.
* Updating files from QMK main
* Updated readme for vial build
Co-authored-by: kevinmgee <kevingee@kevingee.biz>
