0030949: Foundation Classes - Dump improvement for OCCT classes

1. new file Standard_Dump to prepare and parse Dump in JSON format for OCCT objects
2. some presentations cover the proposed dump functionality.
3. 'bounding', 'vaspects' has '-dumpJson' field to see the DumpJson result
4. Bnd_Box constructor with min/max points is implemented to use Dump of this class in Dump BVH_Box
5. Limitation (some classes of Graphic3d, Prs3d has not full filling for DumpJson)

src/XCAFPrs/XCAFPrs_Style.hxx

@@ -121,6 +121,9 @@ public:
     return theS1.IsEqual (theS2);
   }
 
+  //! Dumps the content of me into the stream
+  Standard_EXPORT void DumpJson (Standard_OStream& theOStream, const Standard_Integer theDepth = -1) const;
+
 protected:
 
   Quantity_ColorRGBA myColorSurf;