4pplet/eagle_viper_rep/rev_a Layout Macro Conversion and Additions (qmk#20414)

* info.json: apply friendly formatting

* add matrix_diagram.md

* move matrix data to info.json

* add LAYOUT_60_ansi_split_bs_rshift

* add LAYOUT_60_tsangan_hhkb

* add LAYOUT_60_hhkb

Author: noroadsleft