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/EffectShowManagement/handler_ppm_data.h

@@ -0,0 +1,80 @@
+/**
+  * Handler for player data
+  * $Id$
+  * $HeadURL$
+  * $Author$
+  * Created by gr, SLSE, 2017-02-20
+  */
+
+#pragma once
+
+#include "initialization.h"
+#include "logger.h"
+#include <QMap>
+#include <ParticipantManagement/ppm_dtc.h>
+
+// Participand Management-Handling for Effect Show Actors
+
+namespace EffectShowManagement
+{
+/**
+  * @brief Handler for the provision of effect show actor data.
+  *
+  * (1)Receives participant data from Participant Management service.\n
+  * (2)Retrieves the effect show actor information from participant data.\n
+  */
+class HandlerPpmData : public QObject
+{
+  Q_OBJECT
+public:
+  explicit HandlerPpmData(Initialization *mainHandler,
+                          QObject     *parent = nullptr);
+
+  /**
+    * @brief Connects to Participant Management service in order to access Participant data.
+    */
+  bool init();
+
+  /**
+    * @brief ID, name and equipment number of effect show actor
+    */
+  struct Participant_t
+  {
+    Participant_t() = default;
+    explicit Participant_t(const ParticipantManagement::Participant &data)
+      : id(data.id())
+      , equipmentNumber(data.equipmentNumber().is_set() ? data.equipmentNumber().get() : 0)
+      , name(QString::fromStdString(data.name()))
+    {}
+
+    int     id = -1;
+    int     equipmentNumber = 0;
+    QString name;
+  };
+
+  /**
+    * @brief Returns ID, name and equipment number of the effect show actor. (-1, if not available).
+    * @param[in] equipmentNum Equipment number
+    * @return ID, name and equipment number of the effect show actor.
+    */
+  Participant_t getIdAndNameOfEffectShowActor(int equipmentNum) const;
+
+  /**
+    * @brief Returns the equipment number of the allocated effect show actor. (-1, if not available).
+    * @param[in] id ID of effect show actor
+    * @return Equipment number of the allocated effect show actor.
+    */
+  int getEquipmentNumber(int id) const;
+
+
+private Q_SLOTS:
+  void onParticipantChanged(const ParticipantManagement::Participant &data, DataModification modType);
+
+private:
+  QMap<int, Participant_t> m_participant; // key = ID
+
+  Initialization   *m_mainHandler;
+  NGL::INGLLogger  &m_logger;
+};
+} // namespace EffectShowManagement
+