pointer input hit test

PointerInputDelegatingWrapper.kt

override fun hitTest(
        pointerPosition: Offset,
        hitPointerInputFilters: MutableList<PointerInputFilter>
    ) {
        if (isPointerInBounds(pointerPosition) && withinLayerBounds(pointerPosition)) {
            // If the pointer is in bounds, we hit the pointer input filter, so add it!
            hitPointerInputFilters.add(modifier.pointerInputFilter)

            // Also, keep looking to see if we also might hit any children.
            // This avoids checking layer bounds twice as when we call super.hitTest()
            val positionInWrapped = wrapped.fromParentPosition(pointerPosition)
            wrapped.hitTest(positionInWrapped, hitPointerInputFilters)
        }
    }