pvr.hts: add definition to build system
(cherry picked from commit 496e2fced5ee301312de219f7ce62e378ada08b6)
pvr.tvh - fixed demuxer issues, master/oe3.2 compat and added some debug
pvr.tvh - fixed epg as that was cause of timeshift not being detected
pvr.hts - more fixes to the demuxer. Even timeshift almost works!
pvr.tvh - add support for image icons