Extend relaxed validation #772
Description
I think something like this should pass the relaxed validation check:
validating(mode=relaxed) 7cb96346-de33-40fe-94f1-0373037e82c4.pdf ...
validation error (obj#:18): dict=fdDict required entry=FontName missing
this makes the merge function behave this way:
pdfcpu merge -m create merged.pdf 7cb96346-de33-40fe-94f1-0373037e82c4.pdf A1_12_2023.pdf
writing merged.pdf...
7cb96346-de33-40fe-94f1-0373037e82c4.pdf
close merged.pdf: file already closed