Combine GrTessellateStrokeOps when possible

Bug: skia:10419
Change-Id: Ifd93b6cd8acffa78675b3e45134dfa52062b4f7a
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/300102
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
6 files changed