[spotify] Various enhancements and fixes (#11370)

[spotify] Various enhancements and fixes (#11370)

Enhancements:
- Added play actions to start a track or other via a rule.
- Added albumImageUrl with the url to the album image to not have to send the whole image via the openHAB eventbus.
- Added a parameter imageIndex to set the image size to use (0, 1 or 2) to channels albumImage and albumImageUrl.
- Added offset and limit parameters to playlists channel (Closes #6843).

Fixes:
- Fixed invalid expire value set on ExpiringCache (Closes #10490).
- Improved handling Spotify API error messages (Closes #11308).
- Added TTL to discovery results to fix duplicated Spotify Connect devices reported in the inbox (Closes #7400).
- Fixed device list update problem for devices. If no devices where configured as separate things (or the devices added where offline, but non added where not offline) the list was not updated.

Signed-off-by: Hilbrand Bouwkamp <hilbrand@h72.nl>