Add t in dvmp; add a place holder for InvQuant in REC

WIP: Add t in dvmp; add a place holder for InvQuant with limited track selection in REC

benchmarks/dvmp/analysis/vm_invar.cxx

@@ -85,11 +85,12 @@ int vm_invar(const std::string& config_name)
                   .Define("N", "p_rec.size()")
                   .Define("p_sim", util::momenta_from_simulation, {"mcparticles2"})
                   //================================================================
-                  .Define("invariant_quantities", util::calc_inv_quant_sim, {"p_sim"})
-                  .Define("nu_sim", util::get_nu, {"invariant_quantities"})
-                  .Define("Q2_sim", util::get_Q2, {"invariant_quantities"})
-                  .Define("x_sim", util::get_x, {"invariant_quantities"})
-                  .Define("t_sim", util::get_t, {"invariant_quantities"});
+                  .Define("invariant_quantities_rec", calc_inv_quant_rec, {"p_rec"})
+                  .Define("invariant_quantities_sim", util::calc_inv_quant_sim, {"p_sim"})
+                  .Define("nu_sim", util::get_nu, {"invariant_quantities_sim"})
+                  .Define("Q2_sim", util::get_Q2, {"invariant_quantities_sim"})
+                  .Define("x_sim", util::get_x, {"invariant_quantities_sim"})
+                  .Define("t_sim", util::get_t, {"invariant_quantities_sim"});
   //================================================================
 
   // Define output histograms