8994: Check for subdirs in vfs loader exclusions. r=matklad a=ammkrn
The current logic used to transfer global_excludes into vfs exclusions
only transfers global_excludes that are the parent of an item in
dirs.include.
This commit additionally adds an item from global_exclude to the vfs
exclusions if the global_exclude is a child of an included item.
Co-authored-by: ammkrn <ammkrn@tuta.io>
3b10f9e714