Support anime series ordering with core providers

MediaBrowser.Controller/Providers/ISeriesOrderManager.cs

@@ -0,0 +1,26 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using MediaBrowser.Common;
+
+namespace MediaBrowser.Controller.Providers
+{
+    public interface ISeriesOrderProvider
+    {
+        string OrderType { get; }
+        Task<int?> FindSeriesIndex(string seriesName);
+    }
+
+    public static class SeriesOrderTypes
+    {
+        public const string Anime = "Anime";
+    }
+
+    public interface ISeriesOrderManager
+    {
+        Task<int?> FindSeriesIndex(string orderType, string seriesName);
+        void AddParts(IEnumerable<ISeriesOrderProvider> orderProviders);
+    }
+}