Change of logic in main trigger selection:

Change of logic in main trigger selection:
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1) High and low threshold triggers are grouped, only the largest of the 2 is selected
2) Main triggers are not cached any more due to this
3) Trigger patch selection in AliAnalysisTaskEmcal reverted to the status before
4) Simple offline triggers are included in the main trigger patch selection
5) Trigger patches are prepared for the simple offline trigger for Gamma patches