Complete Qt6 migration: full clean build green across groups G1-G12 incl. runtime plugin set

new_docker_build.sh gains Group 12 (212 GUI/Data plugins); fixes LtsUtilsGuiDds visibility (LTO-stripped exports), LtsProjectionWorkstation unity name shadow, 6 unity-off dirs (dup file-scope statics, ddsftc INTERFACE sources) and reconfigures BUILD_FILTERMANAGEMENT/BUILD_PLUGINS_SERVICEMONITOR=ON

qt6-after/qt6-migrated-legatus/Lts/Viewer/SituationMap/MapObjectsImpl/polygon_impl.h

@@ -0,0 +1,69 @@
+/**
+  * @RDE_HEADER@
+  * Interface-Implementation of Polygon
+  * $Id$
+  * $HeadURL$
+  * $Author$
+  */
+
+#pragma once
+
+// Own
+#include "abstract_multi_point_map_object_impl.h"
+#include "basic_path_object_impl.h"
+#include <MapObjects/polygon.h> // Interface
+
+
+// Qt
+#include <QString>
+
+
+
+//----------------------------------------------------------------------------
+namespace SituationMap
+{
+
+
+/**
+ * @brief The PolygonImpl class displays a polygon.
+ *
+ * A class instance consists of the following logical elements:
+ * - mainGraphicalObject      (GraphicalObjectPath displaying the line)
+ */
+// inherent 'public', to get that implementation
+// inherent 'public virtual'  to get that interface
+class SITUATIONMAPOBJECTS_EXPORT PolygonImpl : public BasicPathObjectImpl, public virtual Polygon
+{
+  using BaseClass = BasicPathObjectImpl;
+
+  template <typename> friend class GenericObjectFactory;
+protected:
+  explicit PolygonImpl(const QString &debugInfo = QString());
+  virtual ~PolygonImpl();
+
+public:
+  PolygonImpl(const PolygonImpl &other)     = delete;
+  PolygonImpl &operator=(PolygonImpl &other) = delete;
+
+//  void setScale(float) override {}
+
+
+protected:
+  virtual bool updateViewImpl() override;
+
+  friend class MapImpl;
+  bool init(MapImpl *mapImpl, const QString &logicalLayerName) override;
+
+  // internal/admin
+
+  // logical
+
+
+private:
+  LOGGER_T m_logger;      ///< Interface of the Logging-Facility
+};
+
+
+
+} // namespace SituationMap
+