Update database query
Remove check if prefetched_frequencies dir exists
Add new analyses: finish_dump, generate_population_freq dumps
Module for generating population allele frequency dumps
Add module to finish data dumps: add readme files, compute checksums
Add module to finish population allele frequency dumps
Add module for initialising population allele frequency dumps
Add readme template for GVF dumps
add readme template for VCF dumps
Add readme describing which parameters need to be initialised for
running the pipeline