[BottomSheetBehavior] Nested scrolling child view does not scroll when its inside nested scrolling parent

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**Description:** When a nested scrolling child view is inside a nested scrolling parent view and the child view changes the scroll position, the touch events get intercepted by the bottom sheet behavior. For example, if I put a ViewPager2 in the bottom sheet dialog and put a vertically scrollable RecyclerView inside the ViewPager2, and navigate to the second page, the RecyclerView becomes unscrollable.

**Expected behavior:** Nested scrolling child view must be scrollable and should not be intercepted by bottom sheet behavior.

**Minimal sample app repro:** https://github.com/UdaraWanasinghe/bottom-sheet-nested-scrolling-test

**Android API version:** All affected.

**Material Library version:** 1.8.0

Start with the linked minimal sample app and reproduce the issue using a ViewPager2 containing a vertically scrollable RecyclerView inside a bottom sheet. Then trace BottomSheetBehavior's handling of nested scrolling and touch interception; done means the RecyclerView remains scrollable after navigating to the second page on the affected Material Library version.

Written by the indexing model from the issue text.