Creates a new TouchEvent.
Source
TouchEvent(
String type, bool bubbles,
num localX, num localY, num stageX, num stageY,
bool altKey, bool ctrlKey, bool shiftKey,
this.touchPointID, this.isPrimaryTouchPoint) : super(
type, bubbles, localX, localY, stageX, stageY,
altKey, ctrlKey, shiftKey);