Order for track/album import aggregators

(cherry picked from commit 69f99373e56a2fca49a2be645e6640624cf12339)

Closes #4495
Closes #4496

src/NzbDrone.Core/MediaFiles/TrackImport/Aggregation/AggregationService.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.IO;
+using System.Linq;
 using NLog;
 using NzbDrone.Common.Disk;
 using NzbDrone.Core.MediaFiles.TrackImport.Aggregation.Aggregators;
@@ -26,8 +27,8 @@ namespace NzbDrone.Core.MediaFiles.TrackImport.Aggregation
                                  IDiskProvider diskProvider,
                                  Logger logger)
         {
-            _trackAugmenters = trackAugmenters;
+            _trackAugmenters = trackAugmenters.OrderBy(a => a.Order).ToList();
-            _albumAugmenters = albumAugmenters;
+            _albumAugmenters = albumAugmenters.OrderBy(a => a.Order).ToList();
             _diskProvider = diskProvider;
             _logger = logger;
         }

src/NzbDrone.Core/MediaFiles/TrackImport/Aggregation/Aggregators/AggregateFilenameInfo.cs

@@ -11,6 +11,8 @@ namespace NzbDrone.Core.MediaFiles.TrackImport.Aggregation.Aggregators
 {
     public class AggregateFilenameInfo : IAggregate<LocalAlbumRelease>
     {
+        public int Order => 1;
+
         private readonly Logger _logger;
 
         private static readonly List<Tuple<string, string>> CharsAndSeps = new List<Tuple<string, string>>

src/NzbDrone.Core/MediaFiles/TrackImport/Aggregation/Aggregators/AggregateQuality.cs

@@ -4,6 +4,8 @@ namespace NzbDrone.Core.MediaFiles.TrackImport.Aggregation.Aggregators
 {
     public class AggregateQuality : IAggregate<LocalTrack>
     {
+        public int Order => 1;
+
         public LocalTrack Aggregate(LocalTrack localTrack, bool otherFiles)
         {
             var quality = localTrack.FileTrackInfo?.Quality;

src/NzbDrone.Core/MediaFiles/TrackImport/Aggregation/Aggregators/AggregateReleaseGroup.cs

@@ -5,6 +5,8 @@ namespace NzbDrone.Core.MediaFiles.TrackImport.Aggregation.Aggregators
 {
     public class AggregateReleaseGroup : IAggregate<LocalTrack>
     {
+        public int Order => 1;
+
         public LocalTrack Aggregate(LocalTrack localTrack, bool otherFiles)
         {
             var releaseGroup = localTrack.DownloadClientAlbumInfo?.ReleaseGroup;

src/NzbDrone.Core/MediaFiles/TrackImport/Aggregation/Aggregators/IAggregateLocalTrack.cs

@@ -2,6 +2,7 @@ namespace NzbDrone.Core.MediaFiles.TrackImport.Aggregation.Aggregators
 {
     public interface IAggregate<T>
     {
+        int Order { get; }
         T Aggregate(T item, bool otherFiles);
     }
 }