virtme-loadmods: Rewrite in sh

This only does one pass, but it saves ~100ms in Python startup time

Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Merge branch 'master' of ssh://ra.kernel.org/pub/scm/utils/kernel/virtme/virtme
virtme-loadmods: Deduplicate modaliases

Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Add script mode

This is very rudimentary for now.

Signed-off-by: Andy Lutomirski <luto@amacapital.net>