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/MapImpl/grid_impl.h

@@ -0,0 +1,61 @@
+/**
+  * @RDE_HEADER@
+  * Interface-Implementation of Grid
+  * $Id$
+  * $HeadURL$
+  * $Author$
+  */
+
+#pragma once
+
+// Own
+#include <Map/grid.h> // Interface
+#include <Common/situation_map_logging.h>
+
+
+//----------------------------------------------------------------------------
+namespace SituationMap
+{
+
+class MapImpl;
+
+class GridImpl : public SituationMap::Grid
+{
+  using BaseClass = SituationMap::Grid;
+
+public:
+
+  explicit GridImpl(SituationMap::MapImpl *mapImpl);
+  virtual ~GridImpl();
+
+  GridImpl(const GridImpl &other)     = delete;
+  GridImpl &operator=(GridImpl &other) = delete;
+
+
+  virtual GridType gridType() override;
+  virtual void setGridType(GridType gridType) override;
+
+  virtual void setVisible(bool visible) override;
+  virtual bool isVisible() override;
+
+  virtual int levelCount() override;
+
+  virtual bool isLabelVisible() override;
+  virtual void setLabelVisible(bool visible) override;
+
+private :
+  LOGGER_T m_logger;      ///< Interface of the Logging-Facility
+
+  class Private;
+  /**
+      * The private d->pointer to not break BC when changing internals of this class
+     */
+  Private *d = nullptr;
+
+};
+
+
+} // namespace SituationMap
+
+//----------------------------------------------------------------------------
+