BUILD_RTI guards for DDS/Routing modules + logger init fixes

- Lts/DDS: Add BUILD_RTI guards to pacemaker.h, dds_connector.h,
  generic_fts_* files, generic_base.h, routing_plugin.h
- Lts/Services/RoutingServiceNG: Add BUILD_RTI guards to session.h/cpp,
  connection.h/cpp, data_writer_task.h/cpp
- Fix C++23 reference member initialization: use getLogger() instead of
  getNGLLogger() in constructor initializer lists
- Root CMakeLists.txt: Add Lts/DDS to include_directories
- Fix export header generation order (GENERATE_EXPORT_HEADER before
  TARGET_INCLUDE_DIRECTORIES)
- Remove auto-generated stub files (external deps collected separately)

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

@@ -11,13 +11,15 @@
 namespace RoutingService
 {
 DataWriterTask::DataWriterTask()
-  : m_doShutdown(false)
+  : m_logger(getLogger("DataWriterTask"))
+  , m_doShutdown(false)
 {
   DEBUG_LOG(m_logger) << this << ": init ";
 }
 
 DataWriterTask::~DataWriterTask()
 {
+#if BUILD_RTI
   std::lock_guard<std::mutex> lock(m_queueLock);
   DEBUG_LOG(m_logger) << this << ": Cleaning up remaining writers: " << m_writerQueue.size();
   while (!m_writerQueue.empty())
@@ -25,8 +27,10 @@ DataWriterTask::~DataWriterTask()
     delete m_writerQueue.front();
     m_writerQueue.pop();
   }
+#endif
 }
 
+#if BUILD_RTI
 void DataWriterTask::enqueue(SampleWriterInterface *swi)
 {
   std::lock_guard<std::mutex> lock(m_queueLock);
@@ -100,5 +104,6 @@ void DataWriterTask::writeSamples()
     }
   }
 }
+#endif // BUILD_RTI
 
 } // namespace RoutingService