Add strip 2pt conical GM

This is distilled from 82161 so we can first change the GMs of our
previous bots and then compare the same GM between the old algorithm
and the new one.

Bug: skia:
Change-Id: I4b13bb1a06d109b60c8e29f5f87adad47d0a811b
Reviewed-on: https://skia-review.googlesource.com/84523
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Yuqian Li <liyuqian@google.com>
1 file changed