Added tic-tac-toe-party-mode. Still something to do (joker, lang, winning)

VocaluxeLib/Menu/IMenu.cs

@@ -289,6 +289,8 @@ namespace Vocaluxe.Menu
 
     public interface IPlaylist
     {
+        string[] GetPlaylistNames();
+
         string GetPlaylistName(int PlaylistID);
         void SetPlaylistName(int PlaylistID, string Name);
         void DeletePlaylist(int PlaylistID);
@@ -308,6 +310,10 @@ namespace Vocaluxe.Menu
         CPlaylistSong GetPlaylistSong(int PlaylistID, int SongIndex);
     }
 
+    public interface IPlaylists
+    {
+    }
+
     [Flags]
     public enum EModifier
     {