Add a global flag `--quiet`, which allows supressing output from
`imdl torrent create` and `imdl torrent verify`.
Since it's a global option, it should be given before the subcommand,
e.g.:
imdl --quiet torrent create --input .
type: added
fixes:
- https://github.com/casey/intermodal/issues/174
The `--terminal` flag can be used to override terminal autodetection and
force `imdl` to behave as if standard error and standard output are
connected to a terminal.
type: added
fixes:
- https://github.com/casey/intermodal/issues/398
