a fairly complete Nynorsk implementation added

src/nynorsk/LangNno.gf

@@ -0,0 +1,10 @@
+--# -path=.:../scandinavian:../abstract:../common:../prelude
+
+concrete LangNno of Lang =
+  GrammarNno,
+  LexiconNno
+  ** {
+
+flags startcat = Phr ; unlexer = text ; lexer = text ;
+
+} ;