cooler zoomify should ensure the base resolution is properly balanced

[robomics]

When calling cooler zoomify with --balance and custom balance args (e.g. --balance-args='--cis-only') using an already balanced matrix as base resolution, no checks are performed to ensure that the base resolution was balanced with the same settings specified through --balance-args.

cooler/cooler/cli/zoomify.py

Lines 30 to 35 in 6b174f1

	for res in resolutions:
	uri = outfile + "::resolutions/" + str(res)
	if "weight" in api.Cooler(uri).bins():
	continue
	logger.info(f"Balancing zoom level with bin size {res}")

This can lead to inconsistent balancing (e.g. the base resolution was balanced using genome-wide interactions, while coarser resolutions are balanced with cis interactions only).