Roll pulling service reset timer on roll

[AndreMiras]

In 03dabdd the service will go to sleep after a period of rolling inactivity.
If after that period the user rolls from the app, the service will be restarted and this is fine. However if the user starts a roll and that roll is not yet confirmed just before the service goes to sleep we have an issue.
Basically we need to find a way so the frontend app can notify the service to reset its inactivity timer.
This could probably be done through Internet Process Communication tools like Python OSC.