Add ability to exit matlab-proxy when Matlab is inactive/idle

[sfeltman]

I would like the ability to specify an inactive/idle timeout for mablab-proxy that would completely exit the app. This is useful when users have forgotten they started a server.

[prabhakk-mw]

Thank you @sfeltman
The development teams have been notified of this feature request.
I'll keep this issue open until we have a resolution!