Fix HI_RES support

[tehkillerbee]

While HI_RES support was added last year, actual playback of HiRes albums was not possible since PKCE login was necessary before getting access to HiRes streams. This feature has now (almost) been added to tidalapi so we can finally get proper HiRes support in mopidy-tidal

This task is still in progress (see https://github.com/tehkillerbee/mopidy-tidal/tree/feature/hires-playback) but HiRes playback does work in this branch. Proof:

Feb 07 21:57:17 mopidy[11915]: INFO     [TidalBackend-6 (_actor_loop)] mopidy_tidal.library Returning 12 tracks
Feb 07 21:57:17 mopidy[11915]: INFO     [TidalBackend-6 (_actor_loop)] mopidy_tidal.playback TIDAL uri: tidal:track:24905:77646169:77646170
Feb 07 21:57:17 mopidy[11915]: INFO     [TidalBackend-6 (_actor_loop)] mopidy_tidal.playback MimeType:application/dash+xml
Feb 07 21:57:17 mopidy[11915]: INFO     [TidalBackend-6 (_actor_loop)] mopidy_tidal.playback Starting playback of track:77646170, (quality:HI_RES_LOSSLESS, codec:flac, 24bit/192000Hz)

• Modify playback to use (HLS) stream instead of direct URLs.
• Handle PKCE login nicely (Currently session .json must be generated manually and copied into the correct folder)

[tehkillerbee]

Fixed in #151