TauAnalysisTools: Allow use of ELEIDNONE WP

This MR allows to configure the TauEfficiencyCorrectionsTool via the TauSelectionTool having both EleOLR and EleBDTWP in SelectionCuts but setting the WPs independently in the TauSelectionTool without getting error messages from TauEfficiencyCorrectionsTool. Previously, if one had both cuts in the SelectionCuts but chose ELEIDNONE as WP, this would result in error messages. It is now also possible to use the re-tuned eleBDT WPs while having both cuts in SelectionCuts by setting the correct properties in the TauSelectionTool (this was not possible before). There is also a small fix for the warning messages in beginInputFile() of the TauEfficiencyCorrectionsTool regarding the automatic detection of AFII vs FullSim.

Closes ATLTAU-1684