Add a Blacklist Mode

I want use CL in a specific PC in Blacklist Mode, I want keep all links in all sites without any processing or cleaning, keeping redirects n' other dirts, and processing links just in specific sites. @Cimbali you can please explain how do this setup right? Thanks so much.

No file, test, or entry point is named in the issue. Start by reviewing the repository’s existing configuration and documentation for link-processing modes; done means a documented blacklist mode preserves links by default and processes only the specified sites.

Written by the indexing model from the issue text.