Offline analysis tools

Hey @welsch and @gseitz, I collected some of the items from our discussion and added them to the list of issues of this milestone. If you have any other points and/or ideas, feel free to add them.

All issues for this milestone are closed. You may close this milestone now.

Unstarted Issues (open and unassigned)

Ongoing Issues (open and assigned)

Completed Issues (closed)

Getting signal event tag if signal is taken from generic MC
#15
Cut optimization based on a figure of merit
#14
Unique event ID to make link for events between different n-tuple files or data frames
#13
Application and evaluation of cuts in offline analysis
#12
Usage of decay trees in offline analysis
#11
Functionality to read root files and store them in a better format
#10
Add convenience function to copy large amounts of data from KEKcc to ETP
#2