PV finder from global tracks in mCBM

In this merge request, the primary vertex finder is introduced for the global tracks in mCBM.

macro/mcbm/mcbm_reco_event.C

@@ -393,6 +393,16 @@ void mcbm_reco_event(Int_t nEvents = 10, TString dataset = "data/test",
   run->AddTask(globalFindTracks);
 
   //run->AddTask(new CbmKfFitTracksTask(CbmKfFitTracksTask::FitMode::kMcbm));
+  // Primary vertex finder from global tracks
+  auto* pvFinder = new CbmPVFinderKF();
+  pvFinder->SetSourceTrackType(CbmPVFinderKF::ESourceTrackType::kGlobalTrack);
+  CbmFindPrimaryVertex* findVertex = new CbmFindPrimaryVertex(pvFinder);
+  run->AddTask(findVertex);
+
+  if (debugWithMC) {  // match tracks 
+    CbmMatchRecoToMC* match2 = new CbmMatchRecoToMC();
+    run->AddTask(match2);
+  }
 
   // -----  Parameter database   --------------------------------------------
   std::cout << std::endl << std::endl;