Feature/lolx reader

Overview

Add support for reading data from a V1740 used by LOLX. Currently it is the same code as used in the lolxanalysis.

Expected Results

Screenshot of EventStepperViewer.C

Note: the plotting requires features from the basic root macro

root -l
.x macros/EventStepperViewer.C("experiments/LOLX_exmaple.json",1,-2,4)