Modifying precisionElectronHypo so it can explicitly pass event context explicitly

In the precisionElectronHypo where we use likelihood selection, we need to calculate and monitor some variables with IAsgElectronLikelihoodTool.h which needs explicit passing of event context e.g. https://gitlab.cern.ch/atlas/athena/-/blob/master/PhysicsAnalysis/Interfaces/EgammaAnalysisInterfaces/EgammaAnalysisInterfaces/IAsgElectronLikelihoodTool.h#L53 . With this MR I am enabling current precisionElectronHypo to pass event context. Would like to know if I am doing it right way although it passes all the tests. Adding @tamartin , @fernando also @christos .