Decode non-ASCII values found in the xfa:datasets (PR 14735 follow-up)
Decode non-ASCII values found in the xfa:datasets (PR 14735 follow-up)

*Please note:* This is possibly bad/wrong in general, but I figured that submitting it for review wouldn't hurt.

It seems that even Adobe Reader doesn't handle the non-ASCII characters that appear in some of the fields correctly, however it should be pretty easy to improve things on the PDF.js side.

showpad/mozilla-pdf.js,Shoobx/pdf.js,nawawi/pdf.js,mozilla/pdf.js,timvandermeij/pdf.js,Snuffleupagus/pdf.js,mozilla/pdf.js,timvandermeij/pdf.js,Snuffleupagus/pdf.js,mozilla/pdf.js,showpad/mozilla-pdf.js,timvandermeij/pdf.js,nawawi/pdf.js,nawawi/pdf.js,Snuffleupagus/pdf.js,showpad/mozilla-pdf.js,Shoobx/pdf.js,Shoobx/pdf.js