lib: pass internalBinding more implicitly

Modify passing of the `internalBinding` function so that it’s
easier for core modules to adopt, and also not even accessible
through `--expose-internals`.

This also splits the module wrapper into a separate version for
internal bindings and for CJS modules, which seems like a good
idea given the different semantics.

PR-URL: https://github.com/nodejs/node/pull/16218


Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>