Suspend output for some time to interact with the console

[DCNick3]

While it is possible to use the stdout/stderr wrappers to output something to the console, for some use-cases this is not enough.

I want to prompt the user with a selection using dialoguer, which wants to have the real terminal writer (by having an AsRawFd trait bound on the Term constructor).

I think this can be ultimately accomplished by exposing the suspend function of the MultiProgress, allowing to hide progress bars during the user interaction (as suggested in console-rs/indicatif#158). This has a side-effect of blocking every other thing that tries to write to the output (including the tracing fmt layer if it was registered), but I think there's no real way to multiplex that..

[emersonford]

closed with v0.3.5, apologies it took a while for me to get around to this :)