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/Viewer/SituationMap/UnitTests/unit_test.h

@@ -0,0 +1,142 @@
+/**
+  * @RDE_HEADER@
+  * Unittest
+  * $Id$
+  * $HeadURL$
+  * $Author$
+  */
+
+#pragma once
+
+#include <memory>
+
+#include <QCoreApplication>
+#include <QtTest/QTest>
+#include <QDialog>
+
+#include <Common/situation_map_logging.h>
+
+namespace AdvancedSymbology
+{
+enum class SymbologyType;
+}
+
+
+class CheckSignal : public QObject
+{
+  Q_OBJECT
+public:
+  bool isConnected(quint64 &msec);
+
+signals:
+  void mySignal();
+};
+
+
+
+class SitMapUnitTest : public QObject
+{
+  Q_OBJECT
+
+public:
+  SitMapUnitTest(AdvancedSymbology::SymbologyType symbologyType);
+  virtual ~SitMapUnitTest();
+
+private:
+  void checkSymbolDictionaryLoad();
+  void checkSymbolDictionaryLoad(AdvancedSymbology::SymbologyType st);
+private Q_SLOTS:
+
+  void checkLogging();
+
+  void checkQRect();
+  void checkQListQVector();
+  void checkQWeakPointer();
+
+  void checkFactoryCreationContraints();
+
+//  void checkIdHandlerCreate();
+//  void checkIdHandlerFree();
+//  void checkIdHandlerReUseId();
+//  void checkIdHandlerReserveId();
+
+  void checkSimpleValue();
+
+  void checkIdGenerator();
+  void checkIdContainer();
+
+  void checkIsSignalConnected();
+  void onCheckIsSignalConnected();
+
+  void checkMapLayer();
+  void checkMapLayerOrderedList();
+
+  void checkLayerFactory();
+
+  void checkObjectFactory();
+
+  void checkPickableOnInvalidUniqueMapId();
+
+  void checkBoundingBox();
+
+  void checkDistanceMeasurement();
+  void measureDistanceGeodetic();
+
+  void recalculateAngle();
+
+  void checkDensify();
+  void checkBuffer();
+
+  void checkMovementTrack();
+  void checkMovementTrackManager();
+
+
+  void checkSidcCodec();
+
+  void checkSIDCDefinitions1();
+  void checkSIDCDefinitions2();
+//  void checkCreateSidc();
+//  void checkSymbolProperties();
+  void checkSymbolDictionaryLoadSymbolXml();
+
+  void checkSymbolDictionaryConsistency();
+
+  void checkSymbolDictionaryFetchSymbol();
+  void checkSymbolDictionaryFetchSymbol2();
+  void checkSymbolDictionaryFetchSymbolAll();
+  void checkSymbolDictionaryExtraDirFetchSymbol();
+  void checkSymbolDictionaryFetchSymbolStress();
+
+  void checkSymbolDictionaryBulkRenderer();
+
+  void checkSymbolDictionarySymbolPropertyImage();
+
+  void checkSymbolDictionaryFindImage();
+  void checkSymbolDictionaryFindPreview();
+  void checkSymbolDictionaryFindBaseSymbol();
+
+  void checkSymbolDictionaryGctString();
+
+
+  void checkMapSettings();
+
+  void checkMatrix2D();
+
+  void virtualInheritances();
+
+  void multiInheritancesVisualStudio2015Bug();
+
+protected:
+
+private:
+
+  class Private;
+
+  static const unsigned int m_initReserve = 20;
+  static const unsigned int m_blockSize   = 10;
+
+  SituationMap::LOGGER_T    m_logger;
+  std::unique_ptr<Private>  m_d;
+
+};
+