Overview of active syncs/forwards

[Snektron]

I have a large number of syncs that I keep around, but do not keep active all the time. Currently, the list is large enough that the output of mutagen sync list is hard to navigate.

It would be nice if there was a flag to filter the state of forwards/syncs listed. I'm thinking something like mutagen sync list --state=paused or mutagen sync list --running. The output would be exactly the same as current, except with only the relevant items.