Modify the rich_structure example to set include_runfiles (#906)

* Modify the rich_structure example to set include_runfiles

Author: pcc

examples/rich_structure/src/client/BUILD

@@ -56,10 +56,9 @@ pkg_files(
         ":foo",
         ":fooctl",
     ],
+    include_runfiles = True,
     # Where it should be in the final package
     prefix = select(shared_object_path_selector) + "/bin",
-    # Should this work?
-    # runfiles_prefix = select(shared_object_path_selector) + "/bin/runfiles",
 )
 
 pkg_files(