Build-integration and Badges for Hackage

Hackage have a dedicated Builder application which builds the package, documentation and report same to the hackage server. While this information provided is limited, Hackage and builder are in a perfect position to extend it and provide additional details like Code Coverage, Test Report.

The main objective of this project is to make these pieces of information available about a package and provide this information through badges. These Badges will be generated dynamically with the current stats.

This project also aims to fix various issues of the Builder and add a new feature to hackage which will let maintainers trigger a rebuild in case they feel build failed due to a problem from our side.