Each vulnerability source has a specific type of feature that it affects
We assume the following:
* Alpine: Binary Package
* Debian: Source Package
* Ubuntu: Source Package
* Oracle OVAL: Binary Package
* RHEL OVAL: Binary Package
Main Clair logic is changed in worker, updater, notifier for better adapting
ancestry schema. Extensions are updated with the new model and feature lister
and namespace detector drivers are able to specify the specific listers and
detectors used to process layer's content. InRange and GetFixedIn interfaces
are added to Version format for adapting ranged affected features and next
available fixed in in the future. Tests for worker, updater and extensions
are fixed.
