UIButtonSquishHelper Class
Extends MonoBehaviour, IPointerDownHandler, IPointerExitHandler, IPointerUpHandler, IPointerEnterHandler
void OnPointerEnter ( PointerEventData eventData )
void OnPointerDown ( PointerEventData eventData )
void OnPointerExit ( PointerEventData eventData )
void OnPointerUp ( PointerEventData eventData )