fixed new tense structure in next-resourc/demo

lib/next-resource/demo/DemoBul.gf

@@ -0,0 +1,16 @@
+--# -path=.:alltenses
+
+concrete DemoBul of Demo = 
+  NounBul,
+  ClauseBul,
+  AdjectiveBul,
+  AdverbBul,
+  NumeralBul,
+  QuestionBul,
+  StructuralBul,
+  LexiconBul
+  ** {
+
+flags language = bg; unlexer = text ; lexer = text ;
+
+} ;