MIRROR TIMER START

Fired when some sort of timer starts.
 MIRROR_TIMER_START: timerName, value, maxValue, scale, paused, timerLabel
==Payload==
:;timerName: - e.g. "BREATH"
:;value: - start-time in ms, e.g. 180000
:;maxValue: - max-time in ms, e.g. 180000
:;scale: - time added per second in seconds, for e.g. -1 
:;paused:
:;timerLabel: - e.g. "Breath"