ComposeViewFactory isn't currently compatible with saved instance state

[zach-klippenstein]

AndroidComposeView requires its parent view to have an ID to support saved state registry, but we have the same problem that it does – they're creating dynamically, and we can't guarantee a unique ID across process restarts. Not sure how to solve this, this ticket is for exploring possible solutions.

One idea might be to require bindCompose composedViewFactory to take an @IdRes Int.

Some related Compose links:

• https://android-review.googlesource.com/c/platform/frameworks/support/+/1311537