Draft: [trigEGam] Integration beteween mongroups and TrigEgammaMonitoring

This MR is to include mongroups inside the TrigEgammaMonitoring framework.

• A method was implemented in the TrigEgammaMonitCategoryMT reading, for now, the mongoups from JSON local file produced by a ART test.
• At this moment, only the primary chains was configured, and then, called inside the TrigEgammaMonitorConfigMT.py file .
• In a next MR, we will include a logic to route chains to shifter and expert folders automatically, according to their respective mongroups.

JIRA Ticket: ATR-25841 .

ping: @safarzad , @cjmeyer , @fernando , @kyjones and @jlieberm

PhysicsAnalysis/SUSYPhys/SUSYTools/Root/Electrons.cxx

@@ -121,6 +121,10 @@ StatusCode SUSYObjDef_xAOD::FillElectron(xAOD::Electron& input, float etcut, flo
   ATH_CHECK( evtStore()->retrieve( evtInfo, "EventInfo" ) );
   const xAOD::Vertex* pv = this->GetPrimVtx();
   const xAOD::TrackParticle* track =  input.trackParticle();
+  if (!track) {
+    ATH_MSG_DEBUG("No primary track particle for this electron. Skipping.");
+    return StatusCode::SUCCESS;
+  }
   double primvertex_z = pv ? pv->z() : 0;
   double el_z0 = track->z0() + track->vz() - primvertex_z;
   dec_z0sinTheta(input) = el_z0 * TMath::Sin(input.p4().Theta());