Feat: prefix filter should have strategies to get prefixes.txt

[cstamas]

And probably cache them as well.

The "standard" locations are (as supported by Central and Nx2 repositories): $repoUrl/.meta/prefixes.txt

Examples:
https://repo.maven.apache.org/maven2/.meta/prefixes.txt
https://repository.apache.org/content/repositories/releases/.meta/prefixes.txt
etc

[cstamas]

Fixed, we need maybe option to NOT get them but use provided ones.