- add gennumforms to common romance

- try to make preposition contraction
- try to add detcn

src/portuguese/PhonoPor.gf

@@ -1,3 +1,12 @@
 resource PhonoPor = open Prelude in {
 
-}
+  oper
+    arts : pattern Str = #("o" | "os" | "a" | "as") ;
+
+    elisDe : Str ;
+    elisDe = pre {
+      #arts => "d" ++ BIND ;
+      _ => "de"
+      } ;
+
+} ;