1.1.2

fixed _files_generator to recognize .zarr files

1.1.1

gather_files now accepts ncores as an argument to enable parallel fetching of file paths, improving extraction speed for large directories

gather_files returns empty data frame if target doesn't exist

The gather_files interface changed so it returns the empty data frame when the target doesn't exist, even if filters or index is specified.
This makes the behaviour more consistent.