TrigCost: Calculate unique CPU time of chains
Add cost columns (total unique time [s] and total unique time as a fraction of total time [%]) and histograms (Unique time per chain call) containing information about the time of algorithms executed uniquely for a given chain (were active in an event only for one chain).
Example made with 20 events: https://atlas-trig-cost.cern.ch/?dir=aporeba&type=&tag=data18-13TeV&run=00000024&range=LumiBlock_00150&level=HLT&summary=Chain