draw vertices: use SkVM for simple triangles

If there are no color or texture changes between triangles,
then us SkVM to draw the triangles.

Change-Id: I2b1af743b36c681db23045c9f398c305894ead91
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/425020
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Herb Derby <herb@google.com>
1 file changed