[AppKit] Update Xcode 13.0 bindings for betas 1,2,3,4,5#12936

Merged

rachelkang merged 3 commits intodotnet:mainfrom rachelkang:xcode13.0-appkit-b1-b2-b3-b4-b5

Oct 7, 2021

+225-77

Commits on Oct 5, 2021

Commits on Oct 6, 2021

Update based on feedback
rachelkang
committed