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/MeteoDataManagement/tcpweatherstation.cpp

@@ -32,7 +32,7 @@ TcpWeatherStation::TcpWeatherStation(int id,
   , m_speed(0.0)
   , m_climateOk(false)
   , m_windOk(false),
-    m_logger(NGL::NGLLoggerBootstrap::getLogger()) {
+    m_logger(NGL::NGLLoggerBootstrap::getNGLRootLogger()) {
   INFO_LOG(m_logger) << "Start TcpWeatherStation ip/(hostname): " << m_converterIp
                      << " climatePort: " << m_climatePort
                      << " windPort: " << m_windPort;