Implements a BSP tree with NEON/SSE optimizations that tracks
non-overlapping regions. This object can be used batch sets of paths
into non-overlapping draws. Performance on AppleM1 with our existing
benchmarks looks very promising:
desk_motionmarkarcs.skp 1227 paths -> 69 draws 450us
desk_motionmarksuits.skp 1417 paths -> 26 draws 201us
desk_chalkboard.skp 1940 paths -> 11 draws 84us
desk_ynevsvg.skp 859 paths -> 10 draws 31us
desk_micrographygirl.skp 318 paths -> 29 draws 11us
Bug: skia:12466
Change-Id: I847a93ed726dea10cb403cb76e578bd81eb920d2
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/460298
Commit-Queue: Chris Dalton <csmartdalton@google.com>
Reviewed-by: Herb Derby <herb@google.com>
