added new properties and endpoints for series special features

MediaBrowser.Model/Dto/BaseItemDto.cs

@@ -138,6 +138,8 @@ namespace MediaBrowser.Model.Dto
         /// <value>The production year.</value>
         public int? ProductionYear { get; set; }
 
+        public int? SeasonCount { get; set; }
+        
         /// <summary>
         /// Gets or sets the players supported by a game.
         /// </summary>

MediaBrowser.Model/Querying/ItemQuery.cs

@@ -176,6 +176,8 @@ namespace MediaBrowser.Model.Querying
         /// <value>The max official rating.</value>
         public string MaxOfficialRating { get; set; }
 
+        public int? MinIndexNumber { get; set; }
+        
         /// <summary>
         /// Initializes a new instance of the <see cref="ItemQuery"/> class.
         /// </summary>