0023024: Update headers of OCCT files

Added appropriate copyright and license information in source files

src/IntTools/IntTools_FClass2d.cxx

@@ -1,7 +1,23 @@
-// File:	IntTools_FClass2d.cxx
-// Created:	Wed Mar 22 09:44:18 1995
-// Author:	Laurent BUCHARD
-//		<lbr@mastox>
+// Created on: 1995-03-22
+// Created by: Laurent BUCHARD
+// Copyright (c) 1995-1999 Matra Datavision
+// Copyright (c) 1999-2012 OPEN CASCADE SAS
+//
+// The content of this file is subject to the Open CASCADE Technology Public
+// License Version 6.5 (the "License"). You may not use the content of this file
+// except in compliance with the License. Please obtain a copy of the License
+// at http://www.opencascade.org and read it completely before using this file.
+//
+// The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
+// main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
+//
+// The Original Code and all software distributed under the License is
+// distributed on an "AS IS" basis, without warranty of any kind, and the
+// Initial Developer hereby disclaims all such warranties, including without
+// limitation, any warranties of merchantability, fitness for a particular
+// purpose or non-infringement. Please see the License for the specific terms
+// and conditions governing the rights and limitations under the License.
+
 
 #include <IntTools_FClass2d.ixx>
 
@@ -38,7 +54,7 @@
 //function : IntTools_FClass2d:IntTools:_FClass2d
 //purpose  : 
 //=======================================================================
-  IntTools_FClass2d::IntTools_FClass2d()
+IntTools_FClass2d::IntTools_FClass2d()
 {
 }
 //=======================================================================