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/MapObjects/mine.h

@@ -0,0 +1,53 @@
+/**
+  * @RDE_HEADER@
+  * Interface of Mine
+  * $Id$
+  * $HeadURL$
+  * $Author$
+  */
+
+#pragma once
+
+#include "abstract_single_point_map_object.h"
+
+//----------------------------------------------------------------------------
+namespace SituationMap
+{
+
+/**
+ * @brief The SingleFire class supports Indirect Single Fire.
+ */
+class Mine : public virtual AbstractSinglePointMapObject
+{
+
+  using BaseClass = AbstractSinglePointMapObject;
+
+public:
+
+  /* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+   * Don't use "= default" because of bug in VS2015 JT 2016/11/7
+   * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
+  Mine() : AbstractSinglePointMapObject() {;}  ///< Contructor
+
+  virtual ~Mine() = default;  ///< Destructor
+
+  /*! \name Specific data*/
+  //@{
+  /**
+   * @brief Set mine state (true = aimed/active => filled symbol).
+   * @return True for aimed/active, otherwise false.
+   */
+  virtual bool state() const = 0;
+
+  /**
+   * @brief Set new mine state.
+   * @param state (true = aimed/active => filled symbol)
+   */virtual void setState(bool state) = 0;
+  //@}
+
+};
+
+
+
+
+} // namespace SituationMap