Adding timeslice and T0 informations to AT
Start time of the timeslice has been added to the analysis tree converter in order to properly compare reconstructed T0 to the true MC T0.
The timeslice length is now stored in the analysis tree data header and can be accessed from AT files via: DataHeader->GetTimeSliceLength(); For this an updated version of AnalysisTree is included too.
Small changes to the macro/PWG/common/production/config.json have been applied to make it more user friendly.