0031313: Foundation Classes - Dump improvement for classes

- Provide DumpJson for geometrical, ocaf and visualization classes;
- Change depth parameter of DumpJson (constant is not obligate here)
- Introduce a new macro for transient objects to be called as the first row in DumpJson: OCCT_DUMP_TRANSIENT_CLASS_BEGIN. We need not put the class name in the macro, using get_type_name of Standard_Transient for it.
- change implementation of OCCT_DUMP_CLASS_BEGIN and OCCT_DUMP_TRANSIENT_CLASS_BEGIN. It is not an sentry more and it does not create a new hierarchy level. It appends a new row into the output stream: "className": <className>
- OCCT_DUMP_* does not require semicolon
- class header is included first in source files of TDataStd, TDocStd, TCAFDoc

src/Image/Image_Texture.cxx

@@ -302,3 +302,20 @@ Standard_Boolean Image_Texture::WriteImage (const TCollection_AsciiString& theFi
   }
   return Standard_True;
 }
+
+//=======================================================================
+//function : DumpJson
+//purpose  : 
+//=======================================================================
+void Image_Texture::DumpJson (Standard_OStream& theOStream, Standard_Integer theDepth) const
+{
+  OCCT_DUMP_TRANSIENT_CLASS_BEGIN (theOStream)
+
+  OCCT_DUMP_FIELD_VALUE_STRING (theOStream, myTextureId)
+  OCCT_DUMP_FIELD_VALUE_STRING (theOStream, myImagePath)
+
+  OCCT_DUMP_FIELD_VALUES_DUMPED (theOStream, theDepth, myBuffer.get())
+
+  OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myOffset)
+  OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myLength)
+}

src/Image/Image_Texture.hxx

@@ -87,6 +87,9 @@ public: //! @name hasher interface
     }
     return theTex1->myTextureId.IsEqual (theTex2->myTextureId);
   }
+  
+  //! Dumps the content of me into the stream
+  Standard_EXPORT virtual void DumpJson (Standard_OStream& theOStream, Standard_Integer theDepth = -1) const;
 
 protected: