Qt6 Migration: Complete migration with DDS/RTI support and build validation

Major Changes:
- Merged latest Qt5 devel content from dlbo (292 files changed, 7 new dirs)
- Consolidated forward-declarations and include folders
- Removed unneeded modules per Niklas' repo check list

Build System Fixes:
- Fixed CMake VERSION_GREATER syntax in ParticipantManagement/CMakeLists.txt
- Added VLC packages (libvlc-dev, vlc-plugin-base) to docker_build.sh
- Added PostgreSQL dev packages (libpq-dev, postgresql-server-dev-all) to Dockerfile
- Fixed locale warnings (ANSI_X3.4-1968 → C.UTF-8)
- Fixed ArcGIS SDK path warnings when BUILD_ARCGIS=OFF

Code Generation Fixes:
- Fixed IDL enum collisions (PortType→CorePortType/DdsutPortType, PdmEventType)
- Fixed Grantlee template svc_translation.cpp.grantlee:
  - Changed {{ idl_enum.name }}_def:: to {{ idl_enum.name }}::
  - Fixed .underlying() calls for C++11 scoped enums (enum class)
- Removed generated files from repo (moc_*, *_dtc.h, *_ftc.h)

Validation:
- BUILD_RTI=ON: SUCCESS
- BUILD_RTI=OFF: SUCCESS
- C++17 standard maintained for RTI 7.7 compatibility
- Ubuntu 26.04 Docker environment verified

Remaining Warnings (expected):
- BgViewer, KDChart, KDReports, Poppler-Qt6 not found (optional features)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

qt5-before/dlbo/Lts/Services/VideoOverlayManagement/handler_infrastructure_data.h

@@ -0,0 +1,79 @@
+/**
+  * Handler for infrastructure data
+  * $Id$
+  * $HeadURL$
+  * $Author$
+  * Created by hjl, SLSE, 2016-07-22
+  */
+
+#pragma once
+
+#include "dds_handler.h"
+#include "logger.h"
+
+#include <InfrastructureManagement/ism_dtc.h>
+
+#include <QtCore/QObject>
+#include <QtCore/QMap>
+
+namespace VideoOverlayManagement
+{
+
+class HandlerInfrastructureData : public QObject
+{
+  Q_OBJECT
+public:
+  explicit HandlerInfrastructureData(const std::shared_ptr<DdsHandler> &ddsHandler, QObject *parent = nullptr);
+
+  ~HandlerInfrastructureData();
+
+  /**
+    * Initialize the handler to manage information from infrastructure management
+    */
+  bool init(int exerciseId);
+
+  /**
+    * Check if there is a camera in the room
+    * @param[in] roomId    Id of the room to get information about camera availability
+    * @returns true if camera is available, otherwise false
+    */
+  bool isCameraAvailable(int roomId) const;
+
+  /**
+    * Returns the streamname of the camera for the given roomId
+    * @param[in] roomId    Id of the room to get the streamname for this camera
+    * @returns returns the streamname if camera is available, otherwise string is empty
+    */
+  QString getStreamNameFromRoomId(int roomId) const;
+
+
+Q_SIGNALS:
+
+private Q_SLOTS:
+  /**
+    * Handle the signals from 'InfrastructureManagement'
+    */
+  void onAssetChanged(const InfrastructureManagement::InstrumentationAsset &data, DataModification modType);
+
+private: // methoden
+  /**
+    * Returns the room id for the given assetId
+    * @param[in] assetId    Id of the asset to get the room id for
+    * @returns returns the room id if available, otherwise -1
+    */
+  int getRoomIdFromAssetId(int assetId) const;
+
+private: // attributes
+  std::shared_ptr<DdsHandler>  m_ddsHandler;                        ///< Pointer to VOM DDS handler
+  std::shared_ptr<InfrastructureManagement::Interface::Dtc> m_dtc;  ///< Pointer to DTC InfrastructureManagement interface object
+
+  QMap<int, int> m_assetId2RoomIdMap; ///< optional nur noetig bei subscribe for AssetChanged
+
+  QMap<int, QString> m_roomId2CameraNameMap;    ///< Reference map roomId to camera name(roomId, cameraName) Condition: per room one camera!
+  int m_exerciseId;
+
+  NGL::INGLLogger &m_logger;           ///< Interface to the Logging-Facility
+
+};
+} // namespace VideoOverlayManagement
+