Stdout and stderr for Calva Inspector

[skylize]

Given that Calva Inspector is intended to deprecate the Calva Output Window, certain features seem pretty important which are currently missing. One such feature is cli output.

It's difficult to troubleshoot without being able to see results of reflection side effects. Even harder to work without access to a stack trace when your code fails entirely.

[PEZ]

So, no deprecation of the Calva Output Window is planned. But we do want to change the default printing of stdout and errors from the REPL Window to somewhere else, and the inspector is good target for at least the errors, I think.

I think there are some Ux challenges with printing stdout to the inspector. For exceptions, I think it is pretty straight forward to replicate the treatment they currently get in the REPL window.

You are welcome to give this a shot. I can introduce you to the relevant places in the code.