Support non TTY devices

[GAS85]

Please add support of non TTY Devices. Currently calling command from the e.g. cron will cause an Error:

chia show -s -c
the input device is not a TTY

For many commands there is no user iteration needed.

Also you can introduce new flag e.g. -b as "batch mode" to produce non TTY output and not accepting any user input.

[GAS85]

That was my issue. Basically non TTY devices being supported, but not with all keys.