dillon1000/react

Move some files out of /shared and rename to upper case (#18363)

* Rename lower case isomorphic default exports modules to upper case named exports

We're somewhat inconsistent here between e.g. ReactLazy and memo.

Let's pick one.

This also moves the responder, fundamental, scope creators from shared
since they're isomorphic and same as the other creators.

* Move some files that are specific to the react-reconciler from shared

Individual renderers are allowed to deep require into the reconciler.

* Move files specific to react-dom from shared

react-interactions is right now dom specific (it wasn't before) so we can
type check it together with other dom stuff. Avoids the need for
a shared ReactDOMTypes to be checked by RN for example.

* Move ReactWorkTags to the reconciler

* Move createPortal to export from reconciler

Otherwise Noop can't access it since it's not allowed deep requires.