added GN & SN categories for constructing names

src/spanish/ExtendSpa.gf

@@ -100,4 +100,10 @@ concrete ExtendSpa of Extend = CatSpa ** ExtendRomanceFunctor -
         cop = serCopula
       } ;
 
+lin GivenName, Surname = \n -> n ;
+lin FullName gn sn = {
+       s = gn.s ++ sn.s ;
+       g = gn.g
+    } ;
+
 } ;