Increase NumPlayer-attribute at saving to db.

Vocaluxe/Screens/CScreenScore.cs

@@ -402,6 +402,7 @@ namespace Vocaluxe.Screens
                     if (players[p].Points > CSettings.MinScoreForDB && players[p].SongFinished)
                     {
                         CDataBase.IncreaseSongCounter(players[p]);
+                        CSongs.GetSong(players[p].SongID).NumPlayed++;
                         break;
                     }
                 }