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

HighGranularityTimingDetector/HGTD_EventCnv/HGTD_EventAthenaPool/src/HGTD_ClusterContainerCnv.cxx

@@ -19,7 +19,7 @@ HGTD_ClusterContainerCnv::HGTD_ClusterContainerCnv(ISvcLocator* svcloc)
 
 HGTD_ClusterContainer* HGTD_ClusterContainerCnv::createTransient() {
 
-  static pool::Guid p1_guid(
+  static const pool::Guid p1_guid(
       "7B3D57D6-F590-4266-974D-A0807122DA5F"); // with HGTD_Cluster_p1
   ATH_MSG_DEBUG("createTransient(): main converter");