Show package released on other distributions

Samuel Henrique think it would be very useful if we could provide information regarding which distributions had which versions of a given package and how many patches they were applying on top of it. In his experience, there are lots of patches applied on other distros that are useful for Debian too.

He highlighted that repology would be a good source of this kind of information.

We need to analyze it to verify the feasibility of this approach.

For more details, see Samuel's original message.