bugfix in grandlib not actually bugfix but enforcing bug in sim2root/CoREASRawRoot/CorsikaInfoFuncs.py

commit e24ac59 further worsens the hardcoded hadronic model in sim2root/CoREASRawRoot/CorsikaInfoFuncs.py

we should read in versions either using regex or take the whole string as is! right now this only works for exactly the version provided in the script, but will not be useful at all for different versions