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/TetraIF/LogView/LogViewXdrElement.cpp

@@ -0,0 +1,61 @@
+// **************************************************************************
+// 
+//  (C) Copyright 2009   Swiss SIMTEC AG
+// 
+// **************************************************************************
+// 
+//  $HeadURL$
+//  $LastChangedBy$
+//  $LastChangedDate$
+//  $LastChangedRevision$
+//   
+// **************************************************************************
+
+#include "LogViewXdrElement.hpp"
+
+namespace N_LogView
+{
+
+// ---------------------------------------------------------------
+// Constructor of a struct or enum
+// ---------------------------------------------------------------
+LogViewXdrElement::LogViewXdrElement(const QString& a_name, const E_ElementKind a_kind, const char *loggerName)
+  : m_Name(a_name)
+  , m_Kind(a_kind)
+  , m_logger(getLogger(loggerName))
+{
+  if (a_name.indexOf(QLatin1Char('<')) >= 0 || a_name.indexOf(QLatin1Char('[')) >= 0)
+    ERROR_LOG(m_logger) << "Element \'" << a_name.toStdString() << "\' has a problem";
+}
+
+// ---------------------------------------------------------------
+void LogViewXdrElement::dump() const 
+{
+  INFO_LOG(m_logger) << "Element[" << getName() << "]: kind=" << getKindName();
+}
+
+
+// ---------------------------------------------------------------
+QString LogViewXdrElement::getKindName() const 
+{
+  switch (getKind())
+  {
+  case e_KindDefine:
+    return QLatin1String("Define");
+  case e_KindEnum:
+    return QLatin1String("Enum");
+  case e_KindEnumElement:
+    return QLatin1String("EnumElement");
+  case e_KindStandardType:
+    return QLatin1String("StandardType");
+  case e_KindStruct:
+    return QLatin1String("Struct");
+  case e_KindStructElement:
+    return QLatin1String("StructElement");
+  case e_KindTypedef:
+    return QLatin1String("Typedef");
+  }
+  return QStringLiteral("Unknown (%1)").arg(getKind());
+}
+
+} // namespace N_LogView