Bug in draw brought up by researcher

[adam2392]

pywhy-graphs/pywhy_graphs/viz/draw.py

Lines 118 to 121 in 20661f1

	for parent in G.predecessors(v):
	# memoize if we have seen the bidirected circular edge before
	if f"{child}-{parent}" in found_circle_sibs or f"{parent}-{child}" in found_circle_sibs:
	continue

[adam2392]

This has been resolved.

However, another issue I noticed is we should be able to handle drawing of purely undirected graphs.