Add origin visualization, add support for Concat44

bug:skia:10211

Change-Id: Ia1a6da784096c1e655ec6198206de879ffbb556b
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/311605
Commit-Queue: Nathaniel Nifong <nifong@google.com>
Reviewed-by: Kevin Lubick <kjlubick@google.com>
6 files changed