flutter_package / dart_pdf

* PDF/A 3b

* PDF/A 3b

* PDF/A, reorganized into multiple files

* PDF/A, make all annotations printable as a default (for pdf/a)

* PDF/A, merging /Names when attaching files

* PDF/A, extended facturx-rdf

* Update pdf/lib/src/pdf/obj/pdfa/README.md

Co-authored-by: Colin Ihlenfeldt <clnmaier@gmail.com>

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Co-authored-by: David PHAM-VAN <1387855+DavBfr@users.noreply.github.com>
Co-authored-by: Colin Ihlenfeldt <clnmaier@gmail.com>

* Table widget refactors

* Table widget refactor totalWidth to remove null checking and empty

This adds the interface `SvgCustomFonts` and a corresponding parameter
to the SvgImage widget. This provides a mechanism to support SVGs that
have known fonts referenced in them.

Closes #1731.

Add Noto Sans TC/SC fonts for traditional and simplified Chinese

implemented fix when UIPrinter isn't contactable even if accessible due to an iOS bug.

added a flag to force using custom paper size to use when the combination of airprint+printer driver choose a wrong paper format.

* added new printing output type value with print pdf method

* removed logs

* fix test with new output type value