build-system: jenkins.sh: Improve debian package generation test coverage during gerrit submission
The idea is to add extra tests/checks to avoid breaking debian package building during nightly builds in OBS. Instead, let's catch it during gerrit patch submission time and don't allow merging it until it's fixed.
We should investigate several tools, like pbuilder, dpkg-build, etc. I recall lynxis also told me something about some kind of lint tool available for this purposes.