Downloads the zip file to a directory you specify on your machine.
crul::HttpClient() is used internally to write the zip file to
disk. See crul::writing-options. This function only downloads the file.
See occ_download_import to open a downloaded file in your R session.
The speed of this function is of course proportional to the size of the
file to download. For example, a 58 MB file on my machine took about
26 seconds.