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/Proxies/TrainingAreaBaseOC/settings.cpp

@@ -0,0 +1,124 @@
+/**
+  * Settings for TabOc
+  * $Id$
+  * $HeadURL$
+  * $Author$
+  * Created by Philipp Dassow, NLST, 2018-02-09
+  */
+
+#include "settings.h"
+
+#include <QtCore/QSettings>
+#include <nglsettings/nglsettings_settings.h>
+#include <ngltools/ngltools_filesystem.h>
+
+namespace TrainingAreaBaseOC
+{
+class NGLSettingsClass : public NGL::Settings
+{
+public:
+  NGLSettingsClass()
+    : NGL::Settings(s_iniFile.isEmpty() ? NGL::findProjectConfigFile() : s_iniFile)
+  {}
+  static void setIniFile(const QString &fn)
+  {
+    s_iniFile = fn;
+  }
+  static QString s_iniFile;
+};
+QString NGLSettingsClass::s_iniFile;
+Q_GLOBAL_STATIC(NGLSettingsClass, s)
+
+//-----------------------------------------------------------------------------
+NGL::Settings *Settings::settings()
+{
+  return s();
+}
+//-----------------------------------------------------------------------------
+
+void Settings::setIniFile(const QString &ini)
+{
+  NGLSettingsClass::setIniFile(ini);
+}
+
+QString Settings::portName()
+{
+  return settings()->settings()->value(QLatin1String("SerialPort/PortName"), QStringLiteral("COM6")).toString();
+}
+
+quint32 Settings::baudrate()
+{
+  return settings()->settings()->value(QLatin1String("SerialPort/Baudrate"), 115200).toUInt();
+}
+
+QString Settings::hostName()
+{
+  return settings()->settings()->value(QLatin1String("TcpPort/HostName"), QStringLiteral("localhost")).toString();
+}
+
+quint32 Settings::port()
+{
+  return settings()->settings()->value(QLatin1String("TcpPort/Port"), 8006).toUInt();
+}
+
+quint32 Settings::portTtci()
+{
+  return settings()->settings()->value(QLatin1String("TcpPort/Port"), 8007).toUInt();
+}
+
+quint32 Settings::deviceId()
+{
+  return settings()->settings()->value(QLatin1String("Canag/DeviceId"), 30).toUInt();
+}
+
+quint32 Settings::manufacturerId()
+{
+  return settings()->settings()->value(QLatin1String("Canag/ManufacturerId"), 6).toUInt();
+}
+
+quint32 Settings::serialNumber()
+{
+  return settings()->settings()->value(QLatin1String("Canag/SerialNumber"), 0).toUInt();
+}
+
+quint32 Settings::verX()
+{
+  return settings()->settings()->value(QLatin1String("Canag/SW-Version-X__0..63"), 0).toUInt();
+}
+
+quint32 Settings::verY()
+{
+  return settings()->settings()->value(QLatin1String("Canag/SW-Version-Y__0..31"), 1).toUInt();
+}
+
+quint32 Settings::verZ()
+{
+  return settings()->settings()->value(QLatin1String("Canag/SW-Version-Z__0..26"), 0).toUInt();
+}
+
+quint32 Settings::biteTimeOut()
+{
+  return settings()->settings()->value(QLatin1String("Canag/BITE-Timeout__0..65535"), 2000).toUInt();
+}
+
+const QString Settings::baseCoord()
+{
+  return settings()->settings()->value(QLatin1String("Canag/BaseCoord"), QStringLiteral("32UMD00000000000000")).toString();
+}
+
+void Settings::baseCoord(const QString &baseCoord)
+{
+  return settings()->settings()->setValue(QLatin1String("Canag/BaseCoord"), QVariant(baseCoord));
+}
+
+bool Settings::use2BytesForSingleFireDiameter()
+{
+  return settings()->settings()->value(QLatin1String("AES/use2BytesForSingleFireDiameter"), true).toBool();
+}
+
+QString Settings::remoteServerHostname()
+{
+  return settings()->settings()->value(QLatin1String("TabOC/remoteServerHostname"), QStringLiteral("EXCTDS01")).toString();
+}
+
+} // namespace TrainingAreaBaseOC