Make UnprotectedResource match ProtectedResource interface

Author: Michael Kipper

lib/semian/unprotected_resource.rb

@@ -29,6 +29,18 @@ def count
       0
     end
 
+    def size
+      0
+    end
+
+    def max_size
+      0
+    end
+
+    def values
+      []
+    end
+
     def semid
       0
     end