[PVR] Changed EpgInfoTag::[IsActive|WasActive|InTheFuture] to take
      timeshifting into account. Fixes wrong event info shown at
      several places in kodi UI when timeshifting (e.g. Video OSD).
Merge pull request #5629 from ksooo/use-correct-epgtag-when-timeshifting

[PVR] Timeshifting: Fixed EpgInfoTag::[IsActive|WasActive|InTheFuture]