Migrates residual Lts sources to generated rtiddsgen API

Adds NmeaManagement tests, fixes codegen includes and Qt6 SerialPort CMake target.

qt6-after/qt6-migrated-legatus/Lts/Services/PresentationManagement/initialization.cpp

@@ -12,6 +12,7 @@
 
 #include <DDS/DDSConnector/dds_connector.h>
 #include <ngldb/db_service_handler.h>
+#include <cstdlib>
 #include <memory>
 
 namespace PresentationManagement
@@ -21,7 +22,7 @@ Initialization::Initialization(QObject *parent)
   : QObject(parent)
   , m_logger(getLogger("Initialization"))
 {
-  qsrand(time(nullptr));
+  srand(time(nullptr));
 }
 
 Initialization::~Initialization()