Include the trigger HLT_g45_loose_6j45_0eta240, available in 2018

Includes the trigger HLT_g45_loose_6j45_0eta240, available in 2018, to the list of extra triggers for matching. This trigger is useful for the SUSY Stealth with photons analysis.

I tested locally on a data18 file and Size/Evt is 0.005kb for the new branch TrigMatch_HLT_g45_loose_6j45_0eta240 (number taken from the output of checkxAOD.py). Also tested on data22 using the test: test_data22PHYS.sh