Thai api files in place

src/api/ConstructorsTha.gf

@@ -0,0 +1,3 @@
+--# -path=.:alltenses:prelude
+
+resource ConstructorsTha = Constructors with (Grammar = GrammarTha) ;

src/api/SyntaxTha.gf

@@ -0,0 +1,5 @@
+--# -path=.:./alltenses:../prelude
+
+instance SyntaxTha of Syntax = 
+  ConstructorsTha, CatTha, StructuralTha, CombinatorsTha ;
+

src/api/TryTha.gf

@@ -0,0 +1,12 @@
+--# -path=.:alltenses
+
+resource TryTha = SyntaxTha, LexiconTha, ParadigmsTha -[mkDet,mkQuant]** 
+  open (P = ParadigmsTha) in {
+
+-- oper
+
+--  mkAdv = overload SyntaxTha {
+--    mkAdv : Str -> Adv = P.mkAdv ;
+--  } ;
+
+}