Add J/psi resolution; re-write RC with Dummy instead of rc tracks

benchmarks/dvmp/analysis/vm_mass.cxx

@@ -14,6 +14,8 @@
 #include <nlohmann/json.hpp>
 #include <string>
 #include <vector>
+#include "eicd/ReconstructedParticleCollection.h"
+#include "eicd/ReconstructedParticleData.h"
 
 // Run VM invariant-mass-based benchmarks on an input reconstruction file for
 // a desired vector meson (e.g. jpsi) and a desired decay particle (e.g. muon)