WIP: Added actual mu to the AnalysisTop output
Previously we only stored average mu values. We need the actual mu values as well, these are needed for control plots when the actual mu reweighting is used.
Also fixed indentation in EventSaverFlatNtuple.cxx as this file was a mess. That is why there are many whitespace changes but the actual code changes are very small.
Edited by Tomas Dado