PDF export demos

[Sergey Tkachenko]

Demo projects allowing to export TRichView to PDF (converting RTF and RVF files to PDF) were added in TRichView setup.
They can be found in <TRichView Dir>\ThirdParty\Export folder.

There are 3 projects, using different third-party PDF libraries:
- LLPDFLib
- Synopse PDF Engine (SynPDF)
- eDocEngine

Additional information:
http://www.trichview.com/forums/viewtop ... 951#p34100