(Hun) Add Hungarian to the API

src/api/CombinatorsHun.gf

@@ -0,0 +1,7 @@
+--# -path=.:alltenses:prelude:src/hungarian
+
+resource CombinatorsHun = Combinators with
+  (Cat = CatHun),
+  (Structural = StructuralHun),
+  (Noun = NounHun),
+  (Constructors = ConstructorsHun) ** open MissingHun in {}  ;