Analysis-Top: Implement JetUncertainties signed gluon fraction eta option for pPb/Pbp
This MR implements in AnalysisTop the new change-over from absolute to signed gluon fraction etas for the small-R JetUncertaintiesTool recently developed by JetMET in !63355 (merged) for the asymmetric pPb/Pbp HI analysis. As a change, the signed etas are now automatically used for pPb/Pbp samples, while the absolute etas are retained for other setups.
The MR addresses a follow-up request in the discussion of ANALYSISTO-1320.
Edited by Chris Scheulen