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/CentralEffectSimulation/Plugins/ECHO/CMakeLists.txt

@@ -0,0 +1,20 @@
+#
+# Commmunication with HlaApacheProxy
+# $Id$
+# $HeadURL$
+# $Author$
+#
+
+SET(SRCS
+    echoplugin.cpp
+    echoplugin.h
+  )
+
+NGL_ADD_LIBRARY(AAR SV cesPluginEcho MODULE ${SRCS})
+NGL_INSTALL_TARGET(cesPluginEcho)
+NGL_TARGET_LINK_LIBRARIES(cesPluginEcho
+  Qt5::Core
+  NGLLogger
+  cesPluginInterface
+)
+

qt5-before/dlbo/Lts/Services/CentralEffectSimulation/Plugins/ECHO/echoplugin.cpp

@@ -0,0 +1,52 @@
+/**
+  * Echo Plugin
+  * $Id$
+  * $HeadURL$
+  * $Author$
+  * Created by Gerlinde Rudolphus, SLTE, 2016-04-14
+  */
+
+#include "echoplugin.h"
+#include <QDebug>
+#include <NGLLogger/NGLLoggerBootstrap.h>
+
+namespace Echo
+{
+
+
+std::shared_ptr<CentralEffectSimulation::Plugin::Interface> EchoPlugin::createInterface(CentralEffectSimulation::Plugin::DataProvider *pdp,
+                                                                                        const std::shared_ptr<DDSConnector::DdsConnector> dDSConnector,
+                                                                                        NGL::Settings *settings)
+{
+  Q_UNUSED(dDSConnector);
+  return std::make_shared<EchoInterfaceImpl>(pdp, settings);
+}
+
+
+EchoInterfaceImpl::EchoInterfaceImpl(CentralEffectSimulation::Plugin::DataProvider *pdp,
+
+                                     NGL::Settings *settings)
+  : m_pdp(pdp)
+  , m_logger(NGL::NGLLoggerBootstrap::getNGLRootLogger().getNGLLogger("CES.Plugin.EchoInterfaceImpl"))
+{
+}
+
+EchoInterfaceImpl::~EchoInterfaceImpl()
+{
+  //cleanupProcess();
+}
+
+bool EchoInterfaceImpl::init(int domainId, int exerciseId)
+{
+  Q_UNUSED(domainId);
+  Q_UNUSED(exerciseId);
+}
+
+QString EchoInterfaceImpl::echo(const QString &message)
+{
+  qDebug() << "return " << message;
+  QString ret(QStringLiteral("<<<< %1 >>>>").arg(message));
+  return ret;
+}
+
+} //namespace Echo

qt5-before/dlbo/Lts/Services/CentralEffectSimulation/Plugins/ECHO/echoplugin.h

@@ -0,0 +1,53 @@
+/**
+  * Echo Plugin
+  * $Id$
+  * $HeadURL$
+  * $Author$
+  * Created by Gerlinde Rudolphus, SLTE, 2016-04-14
+  */
+
+#pragma once
+
+#include <QObject>
+#include <CentralEffectSimulation/ces_plugin_interface.h>
+#include <NGLLogger/INGLLogger.h>
+
+namespace Echo
+{
+class EchoPlugin : public QObject, public CentralEffectSimulation::Plugin::Plugin
+{
+  Q_OBJECT
+  Q_PLUGIN_METADATA(IID "special:3:ces.EchoPlugin")
+  Q_INTERFACES(CentralEffectSimulation::Plugin::Plugin)
+
+public:
+  EchoPlugin() = default;
+  ~EchoPlugin() = default;
+  std::shared_ptr<CentralEffectSimulation::Plugin::Interface> createInterface(CentralEffectSimulation::Plugin::DataProvider *pdp,
+                                                                              const std::shared_ptr<DDSConnector::DdsConnector> dDSConnector,
+                                                                              NGL::Settings *settings) override;
+
+};
+
+
+class EchoInterfaceImpl final : public CentralEffectSimulation::Plugin::Interface
+{
+  Q_OBJECT
+public:
+  EchoInterfaceImpl(CentralEffectSimulation::Plugin::DataProvider *pdp,
+                    NGL::Settings *settings);
+  ~EchoInterfaceImpl();
+  bool init(int domainId, int exerciseId);
+  const char *name() const override { return "ECHO"; }
+
+  QString echo(const QString &message);
+
+private Q_SLOTS:
+private:
+
+private:
+  CentralEffectSimulation::Plugin::DataProvider *m_pdp;
+  NGL::INGLLogger &m_logger;
+};
+
+} // namespace Echo