PWGHF → PWG Relation

File in PWGHF	Includes file in PWG
vertexingHF / AliAnalysisTaskSEHFQA.cxx	FLOW / Tasks / AliFlowEvent.h
vertexingHF / AliAnalysisTaskSEHFQA.cxx	FLOW / Tasks / AliFlowTrackCuts.h
vertexingHF / AliAnalysisTaskSEHFQA.cxx	FLOW / Base / AliFlowTrackSimple.h
vertexingHF / AliAnalysisTaskSEHFQA.cxx	FLOW / Base / AliFlowVector.h