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_Vertex.cxx

@@ -90,8 +90,8 @@ InDetPerfPlot_Vertex::fill(const xAOD::Vertex& vertex, float weight) {
   // fill vertex tracks properties
   int nTracks = vertex.nTrackParticles();
   fillHisto(m_vx_nTracks, nTracks, weight);
-  for (const float& weight : vertex.trackWeights()) {
-    fillHisto(m_vx_track_weights, weight, weight);
+  for (const float& trackWeight : vertex.trackWeights()) {
+    fillHisto(m_vx_track_weights, trackWeight, weight);
   }
 
   // fill expert plots: tracks properties at vertex