Log Message:
djvulibre-lib djvulibre-tools: updated to 3.5.28

NEW IN VERSION 3.5.28
------------------------
- ddjvu: tiff generation improvements
- djvumake: security checks on INCL chunks
- all: updated for modern compilers
- win: moved to msvc2019
- osx: nfd filename normalization
- bugs: fixed several crashes on invalid inputs
- miniexp: fixed escape printout and macrochars
- djvudigital: can use poppler to find text
- csepdjvu: handle T comments for page titles
- bytestream: fixed 2GB limit
- gexception, gthread: cleanup obsolete code