Reland "Enable vertex ID support on Metal"

This reverts commit 70698046219f0100b26e9c73628c683ffea2b9eb.

Bug: skia:12010
Change-Id: Ifbb17904e0157020481b3f98aaefb98df5150afb
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/429298
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
1 file changed