Add option to show only bad configured packages

[matheuss]

Before

❯ hpm at master ✔ package-config-checker | wc -l
     630

After

❯ hpm at master ✔ package-config-checker --bad-only | wc -l
     104

[insin]

Thanks for the Pull Request.

There's an issue for this feature (#3) which has a couple of other things which would need to be implemented:

• You lose the context of the left padding prefix when skipping packages, so it should probably not be used
• After removing prefix, you now have no idea where the package lives, so you'd need to provide that information, e.g. printing the dependency path to it in some form
• It's probably also redundant to print figures.cross when you know every package being logged is "bad" (see the issue for discussion on the flag name)

[matheuss]

Oh, my bad 😩 I dit not saw the issue 😓 I'll make the changes and resolve the conflicts tomorrow 😊