Allow per-pin mute

[Digital-Larry]

Lots of times I try to isolate different sections of the audio "graph" to see what, e.g. the low pass filter chain is doing in the scheme of things. Usually I disconnect the source pins for other paths, but this gets to be a hassle to reconnect it afterwards. So if you could right click on a pin, get a context menu, (which would include the current "Delete Connection" functionality) and also allow muting/unmuting of pins. A muted pin would appear red. I suppose that means that unmuted pins should be green. We'll run it past the UI department, who have been on vacation for about 12 years at this point!

It would also be cool to allow "soloing" of a pin, but that's a bit more complex as you'd have to figure which blocks lead into that pin and then which ones are downstream, and mute everything else. By you I mean me, of course.