Adds an indicator to every commit and pull request that shows if every test passes.
Uses [Maven Wrapper](https://maven.apache.org/wrapper/) instead of relying on a system wide available `mvn` command. This ensures a stable build environment with a set version of Maven.
Co-authored-by: niat8586 <nico@dsv.su.se>
Reviewed-on: #9
Reviewed-by: niat8586 <nico@dsv.su.se>
Co-authored-by: Andreas Svanberg <andreass@dsv.su.se>
Co-committed-by: Andreas Svanberg <andreass@dsv.su.se>
