Converts a file to a series of QR codes.

$ qrsave --help
Usage: qrsave [OPTIONS] INPUT
Options
  --qrversion INTEGER RANGE  QR Version to use for the generated images. 1-40
  --errorlevel [L|M|Q|H]     QR Error Level
  --prefix TEXT              Prefix to append in front of the file name
  --help                     Show this message and exit.