Add BUILD_RTI conditionals for RTI/DDS dependent libraries

Systematic fix for BUILD_RTI conditional compilation:
- Lts/Common: Wrap all DDS-dependent libraries in IF(BUILD_RTI)
  - LtsAppManager, LtsCoordTrans, LtsCoordinate, LtsLogin
  - LtsMultiMonitor, LtsPluginManager, LtsPrinting
  - LtsProjectionWorkstation, LtsScriptTimeline, LtsSession
  - LtsTimelineClassic, LtsUtilsCore, LtsUtilsGui, LtsUtilsGuiDds
- Lts/DDS: Add BUILD_RTI guards to Core, DDSConnector, DdsUnitTests, FTC, FTS
- Lts/Plugins: Add BUILD_RTI guards to FilterManagement, OperatorManagement, SituationReplayManagement
- Lts/Proxies: Add BUILD_RTI guards to Buildings, CombatNetRadio, ComponentMonitor, GuezNasat, TrainingAreaBase, TrainingAreaBaseOC
- Lts/Services: Add BUILD_RTI guards to all 30+ service modules
- Z/nglwidgets: Add BUILD_RTI guards, fix Poppler Qt6 headers

Qt6 compatibility fixes:
- LtsCoordTrans: QOverload signal signature, QChar constructor
- LtsMultiMonitor: setMargin→setContentsMargins, remove deprecated HighQualityAntialiasing
- nglwidgets: Poppler Qt5→Qt6 header migration
- Add FindPopplerQt6.cmake for Qt6 Poppler detection

Part of Qt5→Qt6 migration with RTI DDS support.

qt6-after/qt6-migrated-legatus/Z/src/nglwidgets/CMakeLists.txt

@@ -45,14 +45,14 @@ endif()
 NGL_ADD_LIBRARY(WS AAR SV nglwidgets SHARED ${nglwidgets_SRCS} ${oxygen_SRCS})
 NGL_TARGET_INCLUDE_DIRECTORIES(nglwidgets
   PRIVATE
-    ${POPPLER_QT5_INCLUDE_DIR}
+    ${POPPLER_QT6_INCLUDE_DIR}
 )
 NGL_TARGET_LINK_LIBRARIES(nglwidgets
   PRIVATE
     NGLLogger
     ngltranslator
     ngltools
-    ${POPPLER_QT5_LIBRARY}
+    ${POPPLER_QT6_LIBRARY}
   PUBLIC
     Qt6::Core
     Qt6::Widgets

qt6-after/qt6-migrated-legatus/Z/src/nglwidgets/nglpdfdocument.h

@@ -4,7 +4,7 @@
 #include <QString>
 #include <QVector>
 #include <QPointer>
-#include <poppler/qt5/poppler-qt5.h>
+#include <poppler/qt6/poppler-qt6.h>
 
 #include "nglwidgets_export.h"
 

qt6-after/qt6-migrated-legatus/Z/src/nglwidgets/nglpdfpage.h

@@ -3,7 +3,7 @@
 #include <QtCore/QSizeF>
 #include <QWidget>
 #include <QtGui/QPixmap>
-#include <poppler/qt5/poppler-qt5.h>
+#include <poppler/qt6/poppler-qt6.h>
 #include <vector>
 #include <memory>