Qt6 Migration: BUILD_RTI guards und CMake fixes

- BUILD_RTI conditional compilation für RTI Connext DDS dependencies
- Namespace fixes in core_dtc.h (Core:: → DDS::Core::)
- CMakeLists.txt: BUILD_RTI option und conditional dependencies
- Handler minelayer: namespace closing mit BUILD_RTI guard
- Build erfolgreich mit BUILD_RTI=OFF validiert

Signed-off-by: Torsten Wierschin <torsten.wierschin@life-maps.com>

qt6-after/qt6-migrated-legatus/Lts/Services/RoutingServiceNG/partition_handler.cpp

@@ -9,12 +9,13 @@
 #include "partition_handler.h"
 #include <DDS/DDSConnector/dds_connector.h>
 
+#if BUILD_RTI
 namespace RoutingService
 {
 PartitionHandler::PartitionHandler(const std::shared_ptr<DDSConnector::DdsConnector> &ddsConnector, QObject *parent) : QObject(parent)
   , m_exmDtc(ExerciseManagement::Interface::Dtc::create(ddsConnector))
   , m_destroyTimer(new QTimer(this)),
-    m_logger(NGL::NGLLoggerBootstrap::getLogger()) {
+    m_logger(NGL::NGLLoggerBootstrap::getNGLRootLogger()) {
   m_exmDtc->enableExercise();
 
   m_destroyTimer->setInterval(1000);
@@ -101,3 +102,4 @@ void PartitionHandler::onDestroyTimerTimeout()
 
 
 } // namespace RoutingService
+#endif // BUILD_RTI