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/point_helpers.h

@@ -0,0 +1,69 @@
+/**
+  * CES Point Helpers
+  * $Id$
+  * $HeadURL$
+  * $Author$
+  * Created by Gerlinde Rudolphus, SLTE, 2016-04-14
+  */
+
+#pragma once
+
+#include <QtCore/QPointF>
+#include <QString>
+#include <LtsCoordTrans/lts_coord_trans.h>
+#include <DDS/Core/core.hpp>
+
+namespace CentralEffectSimulation
+{
+
+inline QPointF geographic2Utm(double lon, double lat, int *zone = nullptr)
+{
+  const int zoneToUse = zone ? *zone : -1;
+  auto utm = LtsCoordTrans::UtmCoordinate::fromGeographic(lon, lat, zoneToUse);
+  if (zone)
+    *zone = utm.zone;
+  return QPointF(utm.x, utm.y);
+}
+
+inline QPointF geographic2Utm(const Core::GeoPosition2D &geoPos, int *zone = nullptr)
+{
+  const int zoneToUse = zone ? *zone : -1;
+  auto utm = LtsCoordTrans::UtmCoordinate::fromGeographic(geoPos.lon(), geoPos.lat(), zoneToUse);
+  if (zone)
+    *zone = utm.zone;
+  return QPointF(utm.x, utm.y);
+}
+
+inline QPointF geographic2Utm(const Core::GeoPosition &geoPos, int *zone = nullptr)
+{
+  const int zoneToUse = zone ? *zone : -1;
+  auto utm = LtsCoordTrans::UtmCoordinate::fromGeographic(geoPos.lon(), geoPos.lat(), zoneToUse);
+  if (zone)
+    *zone = utm.zone;
+  return QPointF(utm.x, utm.y);
+}
+
+inline QString geographic2mgrs(const Core::GeoPosition2D &geoPos, int zone)
+{
+  auto utm = LtsCoordTrans::UtmCoordinate::fromGeographic(geoPos.lon(), geoPos.lat(), zone);
+  return utm.mgrs();
+}
+
+inline QPointF geographic2Utm(const Core::GeoPosition2D &geoPos, int zone)
+{
+  auto utm = LtsCoordTrans::UtmCoordinate::fromGeographic(geoPos.lon(), geoPos.lat(), zone);
+  return QPointF(utm.x, utm.y);
+}
+
+inline QString debug(const QPointF &p)
+{
+  return QString::number(qRound(p.x())) + QLatin1Char('/') + QString::number(qRound(p.y()));
+}
+
+inline double getSquareDistance(const QPointF &centerUtm, const QPointF &pointUtm)
+{
+  QPointF p(pointUtm - centerUtm);
+  return p.x() * p.x() + p.y() * p.y();
+} // getSquareDistance
+
+}