SIGINT/SIGTERM will not interrupt pause between serviceRunner runs

[frederikheld]

If the serviceRunner receives a SIGINT/SIGTERM signal it will wait for the current run to be finished. This is on purpose to gracefully shut down all services.

What's not intended is that it waits until the pause at the end of the run has ended, because this pause can be very long if the user configures long iteration times (default is 60s).

--> if services are running when SIGINT/SIGTERM is received, the serviceRunner should stop after all services are run (like it is right now).
--> If the serviceRunner is currently pausing, the pause should be ended immediately.