User clicked Save menu. Display a Dialog to ask whwre to save.

def saveFile(self):
        """User clicked Save menu. Display a Dialog to ask whwre to save."""
        filepath, _ = QtWidgets.QFileDialog.getSaveFileName(
            self, "Save File", '', "Androguard Session (*.ag)")

        if filepath:
            # Ensure .ag as file ending
            if not filepath.endswith(".ag"):
                filepath = "{}.ag".format(filepath)

            self.showStatus("Saving %s..." % str(filepath))
            self.saveSession(filepath)
            self.showStatus("Saved Session to %s!" % str(filepath))