New optional argument for generating charts "showPlot" (defaults to True) that triggers plt.show(). Can turn off showing plot, useful for running multiple charts at once
plotStereographicProjection(userListOfStars=[],
northOrSouth=None,
declination_min=None,
yearSince2000=0,
displayStarNamesLabels=True,
displayDeclinationNumbers=True,
incrementBy=10,
isPrecessionIncluded=True,
showPlot=True,
fig_plot_title=None,
fig_plot_color="C0",
figsize_n=12,
figsize_dpi=100,
save_plot_name=None)