0023024: Update headers of OCCT files

Added appropriate copyright and license information in source files

src/DrawResources/CURVES.tcl

@@ -1,3 +1,20 @@
+# 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.
+
 addmenu Curves "Line"    {
     dialbox line name l origin {0 0 0} direction {1 0 0}
 }