reset method
Implementation
@override
void reset() {
next = null;
mixingFrom = null;
animation = null;
onStartCallback = null;
onInterruptCallback = null;
onEndCallback = null;
onDisposeCallback = null;
onCompleteCallback = null;
onEventCallback = null;
timelineData.length = 0;
timelineDipMix.length = 0;
timelinesRotation.length = 0;
}