This CL adds hello_world_pieceinfo.in/.pdf, which includes the
/PieceInfo dictionary attached to both the document catalog root and
individual page objects. These files allow for future testing of APIs to
access or edit /PieceInfo.
Bug: 42270521
Change-Id: Ic8d110e618703b2f59ab894498b6200eae2397e7
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/152970
Reviewed-by: Andy Phan <andyphan@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Andy Phan <andyphan@chromium.org>
727cfce5cf