Bosesoundtouchapi

* Updated recently played cache processing to remove older cache items if the `RecentListCacheMaxItems` value is changed. The previous release was only removing old cache items if a NEW cache entry was being created. This fix will also remove the items if an existing item is updated.

* Updated recently played cache processing to remove older cache items if the `RecentListCacheMaxItems` value is changed.

* Updated `RecentList` and `PresetList` to default their `LastUpdatedOn` properties to the current date if not set.

* Updated Recently Played List cache logic to be thread-safe to avoid duplicate recently played items.

* Updated Recently Played List cache logic to set the SourceTitle value for recently played items.

* Updated Recently Played List cache logic to convert Spotify tracklisturl references to uri references. If the playing content is a context (e.g. artist, playlist, album, etc), then the context info is in the NowPlayingStatus contentItem data and the TRACK info is in the individual fields. Failure to do this results in duplicate items in the cache with just the contentItem Name field different.