22.2.0-Piers: Changes for Piers (#269)

* Timeshift change

Start timeshift in real time mode.  Low bit radio was taking to long to buffer. From PR 266

* Series and episode clean up

Remove duplicated series information from recordings, timer and EPG.  Parse episode display information from the description. From PR #266

* Cache channel changes

NextPVR has no group API calls.  Cache and compress channel list to avoid extra downloads.  Compress to save on disk for large IPTV channel lists with zlib potential future use with VOD.  Also update to same tinyxml2 version used by Kodi

* Populate EpisodePart

PVR 9 allows populating EpisodePart on recordings.  Update package for release

* Fix incorrect tag

Since Matrix the wrong  XML tag was being extracted so the genre colour and genre text have been incorrect.  Will backport to Omega with changes from @ksooo improving the port from Omega in this PR.