Add Bonsai C4 as a platform board file#18901

Merged

zvecr merged 5 commits intoqmk:developfrom customMK:bonsai

Nov 13, 2022

+427-187

Commits on Oct 29, 2022

Set up Bonsai C4 as a platform board file
infinityis
committed

Commits on Oct 30, 2022

corrections and improvements based on testing and feedback
infinityis
committed

Commits on Nov 4, 2022

Added VBUS sensing as default capability for improved split support using Bonsai C4
infinityis
committed

Commits on Nov 13, 2022