Merge: misc/vim: update the vim plugin to use core instead of standard

Merge: misc/vim: update the vim plugin to use core instead of standard

The plugin was not updated with the new name for the `core` library, but it's never too late.

Pull-Request: #1703
Reviewed-by: Jean Privat <jean@pryen.org>
Reviewed-by: Lucas Bajolet <r4pass@hotmail.com>