Create a new figure manager instance

def new_figure_manager(num, *args, **kwargs):
    """
    Create a new figure manager instance
    """
    # in order to expose the Figure constructor to the pylab
    # interface we need to create the figure here
    DEBUG_MSG("new_figure_manager()", 3, None)
    _create_wx_app()

    FigureClass = kwargs.pop('FigureClass', Figure)
    fig = FigureClass(*args, **kwargs)
    return new_figure_manager_given_figure(num, fig)