extend Sibyll interface for nuclei

once the stack can handle nuclei the sibyll interface has to be extended

depends on #35 (closed)

debatable whether this should be part of the milestone. proton showers may be enough for step zero

True, so move it to the next milestone....

changed milestone to %Physics demonstrator (hadron core)

mentioned in issue #65 (closed)

added Critical label

created branch 90-extend-sibyll-interface-for-nuclei

mentioned in merge request !61 (closed)

mentioned in issue #126 (closed)

mentioned in issue #128 (closed)

This is solved in #128 (closed). Will close and delete branches.

closed