System alarm #65
Description
We need an alarm alert for the user when a threshold is exceeded.
To do that, we need an event_manager that will register to an event group. Kernel will poll and check some thresholds. Whenever a threshold is exceeded, kernel will send a message about that threshold to event_manager. And then web_handler will get alarms in event_manager and show it to the user.
I'd do it with CPU temperature threshold first.