Resolve "create ACL subsets"

TESTING NOTES:

• run make clean
• for i in [10, 25, 50, 100, 500, 1000] -- run make download-ACL-${i}
• make sure input folder now has folders for all of the new collection
• delete the new collections using rm -r inputs/ACL-${collection number}
• run make ACL-10 and confirm that the acl 10 dataset is downloaded, and run against the pipeline with visualization turned off.