v0.17.0

Highlights

• add support for zstd (zstandard) compression
• allow setting ONEIO_ACCEPT_INVALID_CERTS=true to disable SSL checking
• revised custom HTTP request function oneio::get_http_reader to allow specifying custom request::blocking::Client
  for any request customizations to allow specifying custom request::blocking::Client for any request customizations.

Breaking changes

1. rename oneio::get_remote_reader to oneio::get_http_reader
2. rename get_remote_ftp_raw to get_ftp_reader_raw
3. change signatures of oneio::download, oneio::download_with_retry, oneio::get_http_reader's optional HashMap
   parameter for headers to optional reqwest::blocking::Client.