v3.3.1

Version 3.3.1 contains a few notable fixes and improvements.

Bug fixes and enhancements

• #215 Prevent recursive parsing of invalid circular outlines (@adrg)
• #203 Add basic support for UTF-16 text encodings (#203) (@adrg)
• #202 Preserve TOC line components style properties when setting links (#202) (@adrg)
• #199 Add NewPdfFontFromTTF(io.ReadSeeker) function. (#199) (@gabriel-vasile)
• #198 Make the Finalize method of the creator public (#198) (@adrg)
• #196 Prevent extractor panic for invalid PDF text objects (#196) (@adrg)
• #194 Changes to make the lazy reader work on the PaperCut corpus (#194) (@peterwilliams97)