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.h

@@ -12,10 +12,11 @@
 #include <mutex>
 #include <condition_variable>
 
+#include "logger.h"
+
 #if BUILD_RTI
 #include <DDS/Routing/routing_plugin.h>
 #endif
-#include "logger.h"
 
 namespace RoutingService
 {
@@ -25,16 +26,27 @@ public:
   DataWriterTask();
   ~DataWriterTask();
 
+#if BUILD_RTI
   void enqueue(SampleWriterInterface *swi) override;
   void shutdown();
   bool waitForData();
 
   SampleWriterInterface *getNextSampleWriter();
   void writeSamples();
+#else
+  // Stub methods when BUILD_RTI is disabled
+  void enqueue(void* /*swi*/) override {}
+  void shutdown() {}
+  bool waitForData() { return false; }
+  void *getNextSampleWriter() { return nullptr; }
+  void writeSamples() {}
+#endif
 
 private:
   NGL::INGLLogger &m_logger;
+#if BUILD_RTI
   std::queue<SampleWriterInterface *> m_writerQueue;
+#endif
   std::mutex m_queueLock;
   std::condition_variable m_waitForDataCondition;
   bool m_doShutdown;