Spotifywebapipython

* Updated `Device.__init__` model to validate the following properties were initialized from Spotify Web API results, and to set defaults if not: IsActive = False, IsPrivateSession = False, IsRestricted = False, SupportsVolume = False, VolumePercent = 0.
* Updated `PlayerPlayState.__init__` model to validate the following properties were initialized from Spotify Web API results, and to set defaults if not: Actions = PlayerActions(), Device = Device(), CurrentlyPlayingType = 'unknown', IsPlaying = False, ProgressMS = 0, RepeatState = 'off', ShuffleState = 'off', SmartShuffle = 'off', Timestamp = 0.
* Updated `PlayerActions.__init__` model to validate the following properties were initialized from Spotify Web API results, and to set defaults if not: InterruptingPlayback = False, Pausing = False, Resuming = False, Seeking = False, SkippingNext = False, SkippingPrev = False, TogglingRepeatContext = False, TogglingRepeatTrack = False, TogglingShuffle = False, TransferringPlayback = False.

* Updated `SpotifyClient.FollowArtists` method to make the `ids` argument optional; if not supplied, the currently playing track artist id value is used instead.
* Updated `SpotifyClient.UnfollowArtists` method to make the `ids` argument optional; if not supplied, the currently playing track artist id value is used instead.
* Updated `SpotifyClient.SaveAlbumFavorites` method to make the `ids` argument optional; if not supplied, the currently playing track album id value is used instead.
* Updated `SpotifyClient.RemoveAlbumFavorites` method to make the `ids` argument optional; if not supplied, the currently playing track album id value is used instead.
* Updated `SpotifyClient.CreatePlaylist` method to add the `imagePath` argument, which assigns an image to the created playlist.
* Updated `SpotifyClient.ChangePlaylistDetails` method to add the `imagePath` argument, which assigns an image to the updated playlist details.

* Fixed `SpotifyClient.SaveTrackFavorites` method for a bug introduced with v1.0.35 update causeing 'object of type 'bool' has no len()' exceptions.
* Fixed `SpotifyClient.RemoveTrackFavorites` method for a bug introduced with v1.0.35 update causeing 'object of type 'bool' has no len()' exceptions.
* Fixed `SpotifyClient.AddPlaylistItems` method for a bug introduced with v1.0.35 update causeing 'object of type 'bool' has no len()' exceptions.
* Fixed `SpotifyClient.RemovePlaylistItems` method for a bug introduced with v1.0.35 update causeing 'object of type 'bool' has no len()' exceptions.

* Updated `SpotifyClient.SaveTrackFavorites` method to make the `ids` argument optional; if not supplied, the currently playing id value is used instead.
* Updated `SpotifyClient.RemoveTrackFavorites` method to make the `ids` argument optional; if not supplied, the currently playing id value is used instead.
* Updated `SpotifyClient.AddPlaylistItems` method to make the `uris` argument optional; if not supplied, the currently playing uri value is used instead.
* Updated `SpotifyClient.RemovePlaylistItems` method to make the `uris` argument optional; if not supplied, the currently playing uri value is used instead.

* Fixed `SpotifyClient.CreatePlaylist` method to properly pass the Public and Collaborative parameters to the Spotify Web API. Prior to this, any created playlists were being marked with Public=True.

* Added `Device.SelectItemNameAndId` property to return a string that can be used in a selection list in the form of "Name (Id)".
* Added `Device.GetIdFromSelectItem` method to return the Id portion of a `SelectItemNameAndId` property value.
* Added `Device.GetNameFromSelectItem` method to return the Name portion of a `SelectItemNameAndId` property value.