Read CSV file or files output by sourmash gather
`read_gather()` reads in one or many CSV files produced by the command line function sourmash taxonomy annotate. Genome matches can be filtered with `intersect_bp_threshold`, whose default value is 0 base pairs.
Path to CSV file or files output by sourmash gather.
Integer. Gather matches must have an intersect_bp greater than or equal to this value.
Arguments passed to read_csv().