This commit adds experimental module mocking to the test runner.
PR-URL: https://github.com/nodejs/node/pull/52848
Fixes: https://github.com/nodejs/node/issues/51164
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>
Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
Reviewed-By: Geoffrey Booth <webadmin@geoffreybooth.com>
