Add subset of BuildInfo data to OutputPackageBase
This adds a subset of the BuildInfo
data to OutputPackageBase
and therefore makes it available in the management repository.
As the field is optional, it is still possible to convert a sync database into a management repository (without being able to provide the BuildInfo data, as that is not contained in the sync database).
This is the first change (in probably a few more), which will make the roundtrip (management repo -> sync database -> management repo) a lossy action (data is omitted as it is not present in the sync database).
Fixes #20 (closed)