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

LArCalorimeter/LArG4/LArG4Barrel/src/LArBarrelGeometry.h

@@ -91,8 +91,8 @@ namespace LArG4 {
       // to access G4 geometry
       const LArCoudeElectrodes* m_coudeelec;
       const LArCoudeAbsorbers* m_coudeabs;
-      mutable LArStraightElectrodes* m_electrode; // FIXME needed due to lazy initialization
-      mutable LArStraightAbsorbers* m_absorber; // FIXME needed due to lazy initialization
+      const LArStraightElectrodes* m_electrode;
+      const LArStraightAbsorbers* m_absorber;
 
       // to handle small difference (mostly phi wrapping and +-z symmetry)
       // between atlas and test beam