Time Library added to Playground

I could add the overloaded versions if that functionality is what most people expect:

timerRepeat(Period, TimerFunction); // Period in seconds
timerRepeat(Minutes, Seconds, TimerFunction); // Period in Minutes & seconds
timerRepeat(Hours, Minutes, Seconds, TimerFunction); // Period in Hours, Minutes & seconds

then Alarm.timerRepeat(1, 0, Repeats) would do the same thing as Alarm.timerRepeat(0, 1, 0, Repeats);