vm: lazily initialize primordials for vm contexts

Lazily initialize primordials when cross-context support for
builtins is needed to fix the performance regression in context
creation.

PR-URL: https://github.com/nodejs/node/pull/31738
Fixes: https://github.com/nodejs/node/issues/29842


Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: David Carlier <devnexen@gmail.com>