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/Plugins/TakeHomePackageManager/OldTHP/ThpManagement/tpm_exported_scripts_dialog.cpp

@@ -49,7 +49,7 @@ HttpProcess::HttpProcess(ExportedScriptInformation &&esi, QObject *parent) : QOb
   , m_process(new ProcessOverlay)
   , m_nam(new QNetworkAccessManager(this))
   , m_timeout(new QTimer(this)),
-    m_logger(NGL::NGLLoggerBootstrap::getLogger()) {
+    m_logger(NGL::NGLLoggerBootstrap::getNGLRootLogger()) {
   connect(m_process, &ProcessOverlay::signalCancel,
           this, [this]()
   {