adding beam spot weights to InDetPhysVal monitoring

Adding beamspot weight functionality to InDet PhysVal code.

All plotting classes updated. We will likely need experts to comment and adapt some parts of the code. @goblirsc @vcairo

Plots: https://miochoa.web.cern.ch/miochoa/webDir_weights/

@jferrand @dhayden

InnerDetector/InDetValidation/InDetPhysValMonitoring/src/InDetPerfPlot_VertexTruthMatching.cxx

@@ -316,8 +316,8 @@ const xAOD::TruthVertex* InDetPerfPlot_VertexTruthMatching::getTruthVertex(const
     return truthVtx;
 }
 
-void InDetPerfPlot_VertexTruthMatching::fill(const xAOD::Vertex& vertex, const xAOD::TruthVertex * tvrt) {
-
+void InDetPerfPlot_VertexTruthMatching::fill(const xAOD::Vertex& vertex, const xAOD::TruthVertex * tvrt, float weight) {
+  // not sure how to deal with this type of histogram
     if(tvrt){
       float diff_z=vertex.z()-tvrt->z();
       const AmgSymMatrix(3)& covariance = vertex.covariancePosition();