Add option to clear console and error log on reload

[wheany]

Most of the time I do not want to retain old console output or old errors, because errors have a tendency to cascade and fixing the first error often fixes many following errors.

So instead of fixing an error, then reloading, I have to janitor my console and error log by manually clearing them. And in the case of the console, by using a context menu. At least the error log has a button I can click.

[p01]

This is on our roadmap. Can't promise an ETA though.