add bulgarian language (still incomplete)

lib/resource/bulgarian/CatBul.gf

@@ -0,0 +1,56 @@
+concrete CatBul of Cat = CommonX ** open ResBul, Prelude in {
+
+  flags optimize=all_subs ;
+
+  lincat
+
+-- Tensed/Untensed
+
+    S  = {s : Str} ;
+    QS = {s : QForm => Str} ;
+
+-- Sentence
+
+    Cl = {s : ResBul.Tense => Anteriority => Polarity => Order => Str} ;
+    Imp = {s : Polarity => ImpForm => Str} ;
+
+-- Question
+
+    QCl = {s : ResBul.Tense => Anteriority => Polarity => QForm => Str} ;
+    IP = {s : Str ; gn : GenNum} ;
+    IComp = {s : Str} ;    
+    IDet = {s : Gender => Str ; n : Number; det : Dt} ;
+
+-- Verb
+
+    VP = {
+      s : ResBul.Tense => Anteriority => Polarity => Agr => Str ;
+      imp : Polarity => Number => Str ;
+      s2 : Agr => Str
+    } ;
+
+    Comp = {s : Agr => Str} ; 
+
+-- Noun
+
+    CN = {s : Number => Case => Dt => Str; g : Gender} ;
+    NP, Pron = {s : Case => Str ; a : Agr} ;
+    Det = {s : Gender => Str ; n : Number; det : Dt} ;
+    Num = {s : Str; n : Number } ;
+    Quant = {s : AForm => Str; det : Dt} ;
+
+-- Structural
+
+    Subj = {s : Str} ;
+    Prep = {s : Str} ;
+
+-- Open lexical classes, e.g. Lexicon
+
+    V, VS, VQ, VA = Verb ;
+    V2, V2A = Verb ** {c2 : Str} ;
+    V3 = Verb ** {c2, c3 : Str} ;
+
+    A = {s : AForm => Str} ;
+    
+    N = {s : AForm => Str; g : Gender} ;
+}