* extensive renaming/-shuffling, e.g.:
- `refseq_chromosomes` now in `rsrc/genomes/grch38` (only grch38 so far but this
is all we currently use...)
* also `parse_refseq_file` and `__get_genome_rsrc_path` functions
- `variant_request_definitions` and `variant_type_definitions` config files from
`variant_definitions` (separating the query config from the type mappings)
- `cytoband_utils` => `genome_utils`
- `set_genome_rsrc_path` wrapper for cytoband and interval functions
* fix for file uploader issues
- [ ] TODO: documentation on website & lazy loading (e.g. interpolating
`sample` to `biosample_id`; maybe just use column order ...)