0024002: Overall code and build procedure refactoring -- automatic

Automatic upgrade of OCCT code by command "occt_upgrade . -nocdl":
- WOK-generated header files from inc and sources from drv are moved to src
- CDL files removed
- All packages are converted to nocdlpack

src/Message/Message_Gravity.hxx

@@ -0,0 +1,35 @@
+// Created on: 1999-07-29
+// Created by: Roman LYGIN
+// Copyright (c) 1999 Matra Datavision
+// Copyright (c) 1999-2014 OPEN CASCADE SAS
+//
+// This file is part of Open CASCADE Technology software library.
+//
+// This library is free software; you can redistribute it and/or modify it under
+// the terms of the GNU Lesser General Public License version 2.1 as published
+// by the Free Software Foundation, with special exception defined in the file
+// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
+// distribution for complete text of the license and disclaimer of any warranty.
+//
+// Alternatively, this file may be used under the terms of Open CASCADE
+// commercial license or contractual agreement.
+
+#ifndef _Message_Gravity_HeaderFile
+#define _Message_Gravity_HeaderFile
+
+//! Defines gravity level of messages
+//! - Trace: low-level details on algorithm execution (usually for debug purposes)
+//! - Info: informative message
+//! - Warning: warning message
+//! - Alarm: non-critical error
+//! - Fail: fatal error
+enum Message_Gravity
+{
+Message_Trace,
+Message_Info,
+Message_Warning,
+Message_Alarm,
+Message_Fail
+};
+
+#endif // _Message_Gravity_HeaderFile