Moved a lot of the frame playback window functionality to a new class. This allows the functionality to be run

on a separate thread. The performance is a lot better and "use original timing" is now reasonably accurate.

connections/connectionwindow.cpp

@@ -90,6 +90,7 @@ void ConnectionWindow::showEvent(QShowEvent* event)
     readSettings();
     ui->tableConnections->selectRow(0);
     currentRowChanged(ui->tableConnections->currentIndex(), ui->tableConnections->currentIndex());
+    handleConnTypeChanged();
 }
 
 void ConnectionWindow::closeEvent(QCloseEvent *event)