EXOT8 cleanup using new smart slimming
This MR fixes the crash caused by the new smart slimming lists added in !27886 (merged) by removing AntiKt10LCTopoJets from AllVariables. Additionally, it removes the unnecessary TruthEvents collection, cleans up jet building, and exchanges the placeholder AntiKt10LCTopoCSSKSoftDropBeta100Zcut10Jets with AntiKt10UFOCSSKSoftDropBeta100Zcut10Jets and AntiKt10UFOCSSKJets, which are still meant as a placeholder but have smart slimming lists available. Finally, AppendToDictionary is called for several more jet collections in SlimmingHelper.py to help keep derivation definitions cleaner.
Preliminary size tests show a 5-10% decrease in MC size and a smaller decrease is expected for data.