Add Bazel buffet builds for paragraph and accessories

The changes to C++ files were to facilitate splitting out
the primitive shaper and removing some references to a
mostly irrelevant JPEG file (not really part of the public API).

See also http://cl/588842260

Change-Id: Ifd46531181cb7dd3cb45e13536afeb2132211b65
Bug: b/40045064
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/787018
Reviewed-by: Leandro Lovisolo <lovisolo@google.com>
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Kevin Lubick <kjlubick@google.com>
26 files changed