as a template for future Extend modules, added Dut and Spa

src/spanish/ExtendSpa.gf

@@ -0,0 +1,16 @@
+--# -path=alltenses:../common:../abstract
+
+concrete ExtendSpa of Extend =
+  CatSpa ** ExtendFunctor
+--   - []                   -- put the names of your own definitions here
+  with
+    (Grammar = GrammarSpa) **
+  open
+    GrammarSpa,
+    ResSpa,
+    Coordination,
+    Prelude,
+    ParadigmsSpa in {
+    -- put your own definitions here
+    
+    }