Interface to hold information about a Carousel item and its size.
Example of CarouselItemDrawInfo usage:
The Rect by which the carousel item is being clipped.
The maximum size of the carousel item in the main axis in pixels, eg. the size of the item when it is at a focal position
The minimum size of the carousel item in the main axis in pixels, eg. the size of the item as it scrolls off the sides of the carousel
The size of the carousel item in the main axis in pixels