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/InfrastructureManagement/parse_building_xml.h

@@ -0,0 +1,97 @@
+/**
+  * @RDE_HEADER@
+  * Parse building xml file and create MainStructureElementCreateRequest for the data
+  * $Id$
+  * $HeadURL$
+  * $Author$
+  * Created by Christian Ehrlicher, SLSE, 2017-02-02
+  */
+#pragma once
+
+#include "ism_export.h"
+
+#include <QObject>
+#include <QVector>
+#include <InfrastructureManagement/ism_dtc.h>
+#include "logger.h"
+
+class QDomElement;
+class QDomDocument;
+namespace InfrastructureManagement
+{
+class ISM_CLIENT_EXPORT ParseBuildingXml : public QObject
+{
+  Q_OBJECT
+public:
+  struct BuildingMetaInfo
+  {
+    QString filename;
+    Core::GeoPosition geoPosition;
+    double rotationAngleDegree = 0;
+  };
+
+  struct Egcu
+  {
+    int mountpointEgcu = 0;
+    QVector<int> rooms;
+  };
+
+  struct SoundArea
+  {
+    int                             id{-1};
+    std::vector <Core::GeoPosition> geometry ;
+    int                             mainEgcuMountpoint{-1};
+    std::vector <int>               egcuMountpoints;
+  };
+
+  ParseBuildingXml(const QString &xmlFilename,
+                   const QString &vulnerabilityFilename,
+                   const QString &egcuToRoomFilename,
+                   const QString &soundAreaFilename,
+                   const Core::GeoPosition &geoPosition,
+                   double rotationAngleDegree);
+  bool parseXml();
+  QString lastError() const { return m_lastError; }
+  QVector<BuildingMetaInfo> parseMetaXml(const QString &metaXml) const;
+  const MainStructureElementModifyRequest &parsedRequest() const { return m_request; }
+private:
+  QDomDocument openXml(const QString &fileName) const;
+  void parseXmlInternal();
+  Egcu parseEgcu(const QDomElement &domEgcu);
+  bool parseXmlEgcus();
+  bool parseXmlSoundArea();
+  QJsonObject egcusToJson() const;
+  QJsonObject soundAreaToJson() const;
+  void importFootprint(const QDomElement &parent);
+  void importExternalReferences(const QDomElement &parent,
+                                int parentIdx);
+  void importFloors(const QDomElement &parent,
+                    int parentIdx);
+  void importRooms(const QDomElement &parent,
+                   int parentIdx);
+  void tryGetRoomBoundingBox(const QDomElement &subRoomElem, StructureElement &se);
+  void addElementToRequest(const StructureElement &se,
+                           int parentIdx);
+
+  static InfrastructureManagement::MountingPointType mptFromSubId(int subId);
+  StructureElement getStructureElement(const QDomElement &element) const;
+  template <typename T>
+  QDomElement getChildElement(const T &parent, const QString &childTag, bool bThrow = true) const;
+  int getInteger(const QDomElement &element, const QString &attribute) const;
+private:
+  QString m_xmlFilename;
+  QString m_vulnerabilityFilename;
+  QString m_egcuToRoomFilename;
+  QString m_soundAreaFilename;
+  Core::GeoPosition m_geoPosition;
+  double m_rotationAngleDegree;
+  MainStructureElementModifyRequest m_request;
+  QString m_buildingName;
+  QString m_lastError;
+  QVector<Egcu> m_egcus;
+  SoundArea m_soundArea;
+
+  LOGGER_T m_logger;
+};
+
+} // namespace InfraStructureManagement