v0.4.1

[thammegowda]

• Performance improvement for gzip: use pigz whenever available for reading and writing .gz files.
• add mtdata cache to download datasets in parallel
• Better parallelization: parallel and mono data are scheduled at once (previously it was one after the other)
• Added WMT general test 2022 and 2023
• mtdata-bcp47 : -p/--pipe to map codes from stdin -> stdout
• mtdata-bcp47 : --script {suppress-default,suppress-all,express}

  echo -e "en\neng\nfr\nfra\nara\nkan\ntel\neng_Latn\nhin_deva"|  mtdata-bcp47 -p -s express
  eng_Latn
  eng_Latn
  fra_Latn
  fra_Latn
  ara_Arab
  kan_Knda
  tel_Telu
  eng_Latn
  hin_Deva