R1:32d23254c95b

Use `--user` and `--password` from bin/storage in PHP migrations

Summary:
Fixes T2059. Ref T2517.

Currently, you can run `bin/storage upgrade` with `--user` and `--password` arguments. However, these clownishly apply only to `.sql` patches -- the `.php` migrations still use the default user and password.

This is dumb. Stop doing it. Respect `--user` and `--password` for PHP patches.

(I implemented "override", which is very similar to "repair", but kept them separate since I think they're semantically…