Rename GrStrokeGeometry -> GrStrokePatchBuilder

Bug: skia:10419
Change-Id: Iffd139c2d489deb9d57fa860c20158ee398b7c11
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/305561
Commit-Queue: Chris Dalton <csmartdalton@google.com>
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
5 files changed