Merge branch 'const.TauAnalysisTools-20190920' into 'master'

...ameworkTau/DerivationFrameworkTau/TauPVTrkSelectionTool.h

...eworkTau/DerivationFrameworkTau/TauTruthMatchingWrapper.h

...work/DerivationFrameworkTau/src/TauPVTrkSelectionTool.cxx

...rk/DerivationFrameworkTau/src/TauTruthMatchingWrapper.cxx

...csAnalysis/TauID/TauAnalysisTools/Root/BuildTruthTaus.cxx

...is/TauID/TauAnalysisTools/Root/DiTauTruthMatchingTool.cxx

...ysis/TauID/TauAnalysisTools/Root/TauTruthMatchingTool.cxx

...TauID/TauAnalysisTools/Root/TauTruthTrackMatchingTool.cxx

.../TauID/TauAnalysisTools/TauAnalysisTools/BuildTruthTaus.h

...TauID/TauAnalysisTools/TauAnalysisTools/IBuildTruthTaus.h

...TauAnalysisTools/TauAnalysisTools/ITauTruthMatchingTool.h

...alysisTools/TauAnalysisTools/ITauTruthTrackMatchingTool.h

.../TauAnalysisTools/TauAnalysisTools/TauTruthMatchingTool.h

...nalysisTools/TauAnalysisTools/TauTruthTrackMatchingTool.h