Latvian: 1) added some extra things that are used by the Attempto grammar; 2) added notpresent tags; 3) compiles with Setup.hs and lib/src/Make.hs

lib/src/latvian/MakeStructuralLav.gf

@@ -0,0 +1,15 @@
+--# -path=.:../common:../abstract
+
+resource MakeStructuralLav = open CatLav, ParadigmsLav, ResLav, Prelude in {
+
+flags
+  coding = utf8 ;
+
+oper
+  mkSubj : Str -> Subj = \x ->
+    lin Subj {s = x} ;
+
+  mkIDet : Str -> ParadigmsLav.Number -> IDet = \s,n ->
+    lin IDet {s = \\_ => s ; n = n} ;
+
+}