SortModel: Add new sorting criteria

Resources/en.lproj/Localizable.strings

@@ -365,6 +365,9 @@
 "ALBUM" = "Album";
 "FILENAME" = "Filename";
 "TRACK_NUMBER" = "Track number";
+"NB_AUDIO" = "Number of audio";
+"NB_MEDIA" = "Number of media";
+"NB_VIDEO" = "Number of video";
 
 // VLCNetworkLoginTVViewController
 

Sources/Coordinators/SortModel.swift

@@ -58,6 +58,12 @@ extension VLCMLSortingCriteria: CustomStringConvertible {
             return NSLocalizedString("FILENAME", comment: "")
         case .trackNumber:
             return NSLocalizedString("TRACK_NUMBER", comment: "")
+        case.nbVideo:
+            return NSLocalizedString("NB_VIDEO", comment: "")
+        case.nbAudio:
+            return NSLocalizedString("NB_AUDIO", comment: "")
+        case.nbMedia:
+            return NSLocalizedString("NB_MEDIA", comment: "")
         default:
             return NSLocalizedString("DEFAULT", comment: "")
         }