Add scroll view component

[nazmulidris]

Add a scroll view component that behaves like https://developer.mozilla.org/en-US/docs/Web/CSS/overflow

When a child component is wrapped using this scroll view parent, it should handle the scroll operations and clipping to view port.

For the child component, perhaps it is best for it to render its full output to an offscreen buffer as large as it needs, and have the parent scroll view handle clipping it to the viewport.

This is very different from what we have today where each component is responsible for managing its own scrolling and clipping to viewport. It might also make sense to have a new trait for a component that is a child of a scroll view.

Provide scrolling hints (up, down, left, right)