Update HTML output during live mode

[rc0r]

Hi,

I just noticed that during live mode no HTML output is generated. It would be nice if the web output was also generated when monitoring a running fuzz job and furthermore if it was updated whenever the coverage status is printed to the console. Doing this less frequently would be ok too. I think updating the HTML every few minutes or so would be fine.

This could eliminate the overhead for regenerating the complete HTML output for every update coverage-wise. Additionally the user could simply hit F5 in the browser to check the updated coverage reports.

Thanks!