Estimates population size of fosmid pools
Credit to Avery Noonan and Kateryna Ievdokymenko.
singularity build foswalk.sif docker://quay.io/hallam_lab/fosmid-walk
singularity run -B <workspace>:/ws foswalk.sif foswalk -r /ws/<fosmid_read_file>.fq -o /ws/<output_folder>