Describe on cuts does not display supervision custom info

[keeofkoo]

As in line 178:

lhotse/lhotse/cut/describe.py

Lines 170 to 178 in ddde5bd

	if self.cut_custom:
	print("CUT custom fields:")
	for key, val in self.cut_custom.most_common():
	print(f"- {key} (in {val} cuts)")
	if self.sup_custom:
	print("SUPERVISION custom fields:")
	for key, val in self.sup_custom.most_common():
	cut_stats.append(f"- {key} (in {val} cuts)")