Reorganizing code. Added script for generating VS project files

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>

src/util/error_codes.h

@@ -0,0 +1,37 @@
+/*++
+Copyright (c) 2006 Microsoft Corporation
+
+Module Name:
+
+    error_codes.h
+
+Abstract:
+
+    Error codes produced by Z3.
+
+Author:
+
+    Leonardo de Moura (leonardo) 2007-09-04.
+
+Revision History:
+
+--*/
+#ifndef _ERROR_CODES_H_
+#define _ERROR_CODES_H_
+
+#define ERR_OK                  0
+#define ERR_MEMOUT              101
+#define ERR_TIMEOUT             102
+#define ERR_PARSER              103
+#define ERR_UNSOUNDNESS         104
+#define ERR_INCOMPLETENESS      105
+#define ERR_INI_FILE            106 
+#define ERR_NOT_IMPLEMENTED_YET 107 
+#define ERR_OPEN_FILE           108
+#define ERR_CMD_LINE            109
+#define ERR_INTERNAL_FATAL      110
+#define ERR_TYPE_CHECK          111
+#define ERR_UNKNOWN_RESULT      112
+
+#endif /* _ERROR_CODES_H_ */
+