save photo album images as folder.ext

MediaBrowser.LocalMetadata/Images/LocalImageProvider.cs

@@ -176,7 +176,7 @@ namespace MediaBrowser.LocalMetadata.Images
                 "default"
             };
 
-            if (item is MusicAlbum || item is MusicArtist)
+            if (item is MusicAlbum || item is MusicArtist || item is Photo)
             {
                 // these prefer folder
                 names.Insert(0, "poster");

MediaBrowser.Providers/Manager/ImageSaver.cs

@@ -375,7 +375,12 @@ namespace MediaBrowser.Providers.Manager
             }
 
             string filename;
-            var folderName = item is MusicAlbum || item is MusicArtist || (_config.Configuration.ImageSavingConvention == ImageSavingConvention.Legacy && saveLocally) ? "folder" : "poster";
+            var folderName = item is MusicAlbum || 
+                item is MusicArtist || 
+                item is PhotoAlbum || 
+                (saveLocally && _config.Configuration.ImageSavingConvention == ImageSavingConvention.Legacy) ? 
+                "folder" : 
+                "poster";
 
             switch (type)
             {