add method to add filelist file

This is part of correcting the way the dlist zip file is created. We now have a method to take the memorystream and put the file into dlist.

Duplicati/Library/Main/Operation/Backup/UploadRealFilelist.cs

@@ -18,7 +18,6 @@ using System;
 using System.Threading.Tasks;
 using CoCoL;
 using Duplicati.Library.Main.Volumes;
-using System.IO;
 
 namespace Duplicati.Library.Main.Operation.Backup
 {
@@ -63,6 +62,9 @@ namespace Duplicati.Library.Main.Operation.Backup
                             return;
 
                         await db.WriteFilesetAsync(filesetvolume, filesetid);
+
+                        filesetvolume.AddFilelistFile();
+
                         filesetvolume.Close();
 
                         if (!await taskreader.ProgressAsync)

Duplicati/Library/Main/Operation/Backup/UploadSyntheticFilelist.cs

@@ -111,6 +111,8 @@ namespace Duplicati.Library.Main.Operation.Backup
                             foreach(var p in options.ControlFiles.Split(new char[] { System.IO.Path.PathSeparator }, StringSplitOptions.RemoveEmptyEntries))
                                 fsw.AddControlFile(p, options.GetCompressionHintFromFilename(p));
 
+                        fsw.AddFilelistFile();
+
                         var newFilesetID = await database.CreateFilesetAsync(fsw.VolumeID, fileTime);
                         await database.LinkFilesetToVolumeAsync(newFilesetID, fsw.VolumeID);
                         await database.AppendFilesFromPreviousSetAsync(null, newFilesetID, prevId, fileTime);