0025748: Parallel version of progress indicator

Progress indication mechanism is refactored to support incrementing progress within multithreaded algorithms.

The class Message_ProgressIndicator is only an interface to the user application.
It accumulates the progress provided by progress scopes.
The counter is protected by mutex for thread-safety.

The new class Message_ProgressScope replacing Message_ProgressSentry should be used to advance the progress.
The scopes are nested to each other to reflect the nested nature of operations.
The new class Message_ProgressRange should be used to pass the progress to sub-scopes.

All OCCT algorithms involving progress indication have been updated to new API.

Improvements in Draw_ProgressIndicator:
- Separate console mode has been added in order to make possible to put the progress into std::cout instead
  or in addition to the draw interpreter, instead of trigger option "-tclOutput".
- Treatment of Ctrl-Break signal has been added.
  Now any operation can be aborted by Ctrl-C or Ctrl-Break keystroke.

Added new test case 'perf fclasses progr_par' for testing of parallel work of the progress.

src/ShapeProcessAPI/ShapeProcessAPI_ApplySequence.hxx

@@ -26,10 +26,11 @@
 #include <Standard_CString.hxx>
 #include <Standard_Boolean.hxx>
 #include <TopAbs_ShapeEnum.hxx>
+#include <Message_ProgressRange.hxx>
+
 class ShapeProcess_ShapeContext;
 class TopoDS_Shape;
 
-
 //! Applies one of the sequence read from resource file.
 class ShapeProcessAPI_ApplySequence 
 {
@@ -50,7 +51,10 @@ public:
   //! If <fillmap> is True adds history "shape-shape" into myMap
   //! for shape and its subshapes until level <until> (included).
   //! If <until> is TopAbs_SHAPE,  all the subshapes are considered.
-  Standard_EXPORT TopoDS_Shape PrepareShape (const TopoDS_Shape& shape, const Standard_Boolean fillmap = Standard_False, const TopAbs_ShapeEnum until = TopAbs_SHAPE);
+  Standard_EXPORT TopoDS_Shape PrepareShape (const TopoDS_Shape& shape,
+                                             const Standard_Boolean fillmap = Standard_False,
+                                             const TopAbs_ShapeEnum until = TopAbs_SHAPE, 
+                                             const Message_ProgressRange& theProgress = Message_ProgressRange());
   
   //! Clears myMap with accumulated history.
   Standard_EXPORT void ClearMap();