Add support for row-by-row jpeg encoding

Reland of:
https://skia-review.googlesource.com/c/14641/

Bug: 713862
Change-Id: I9dca5ede4ebf569c5f80edcfb23a506b6cfa935e
Reviewed-on: https://skia-review.googlesource.com/15144
Reviewed-by: Leon Scroggins <scroggo@google.com>
Commit-Queue: Matt Sarett <msarett@google.com>
12 files changed