BottomSheet V2 Expandability

[yemi33]

Describe the feature that you would like added

For BottomSheet V2, I wish I could expand the bottom sheet from its initial height using the handle, if sheet content is taller than the initial height. I want the following behavior specifically:

1. Bottom sheet's initial height is A
2. Bottom sheet's sheet content's full height is B
3. B > A
4. initially when the user opens the bottom sheet, the height of the bottom sheet is A
5. When the user 'scrolls' inside the sheet content, scroll happens, bottom sheet height is still A
6. When the user pulls on the handle, BottomSheet's height increases (expands) A++

What component or utility would this be added to

This will help in Loop Android's effort to add a bottom sheet page switcher in the app

Have you discussed this feature with our team, and if so, who

Mayank Mishra

Additional context/screenshots

[mishramayank1]

Completed in PR #329