Add Phrasebook to testsuite. Move grammars into subfolders. Add run-bench script.

testsuite/lpgf/phrasebook/SentencesNor.gf

@@ -0,0 +1,10 @@
+concrete SentencesNor of Sentences = NumeralNor ** SentencesI - [NameNN] with 
+  (Syntax = SyntaxNor),
+  (Symbolic = SymbolicNor),
+  (Lexicon = LexiconNor) ** open SyntaxNor, (P = ParadigmsNor) in
+
+{
+
+lin NameNN = mkNP (P.mkPN "NN") ;
+
+}