sixtracklib/common: make signatures for the NS(BeamBeamBoostData) accessor functions consistent wrt. the memory region
sixtracklib/common: make signatures for the NS(BeamBeamBoostData) accessor functions consistent wrt. the memory region

SixTrack/SixTrackLib,SixTrack/SixTrackLib,SixTrack/SixTrackLib,SixTrack/SixTrackLib