* Gami Studio Lex60: Configurator Layout support
* correct key sizes on bottom row per lukelex
* add LAYOUT_60_ansi
To test, run `make gami_studio/lex60:default_60_ansi` and flash.
* add 60_ansi keymap
To test, run `make gami_studio/lex60:60_ansi` and flash.
* remove data for 60_ansi layout