Bidi segmentation BEFORE anything else

Change-Id: I94637e663bc1ffc7d9d6e1c0fb0b28509af45f60
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/266200
Commit-Queue: Julia Lavrova <jlavrova@google.com>
Reviewed-by: Ben Wagner <bungeman@google.com>
6 files changed