Allow restarting the process when it is done running

[hybrist]

Right now after the process ended (e.g. it just crashed or hit end of logic) bugger needs to be killed or is pretty useless. There should be a :reload command in the terminal (and :help, for that matter). This command should also work anytime.

[hybrist]

This might be impossible now that bugger runs as part of the debugged process.