Added forgotten files

[SVN r28314]

v2/example/libraries/Jamroot

@@ -0,0 +1,4 @@
+
+use-project /library-example/foo : util/foo ;
+
+build-project app ;

v2/example/libraries/util/foo/include/lib1.h

@@ -0,0 +1,10 @@
+//  Copyright (c) 2003 Vladimir Prus
+//
+//  Distributed under the Boost Software License, Version 1.0. (See
+//  accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+//
+//  http://www.boost.org
+// 
+
+void foo();