moved lib/next-resource to next-lib/src, to enable linking with next-lib as value of GF_LIB_PATH

next-lib/src/demo/DemoCat.gf

@@ -0,0 +1,16 @@
+--# -path=.:alltenses
+
+concrete DemoCat of Demo = 
+  NounCat,
+  ClauseCat,
+  AdjectiveCat,
+  AdverbCat,
+  NumeralCat,
+  QuestionCat,
+  StructuralCat,
+  LexiconCat
+  ** {
+
+flags language = ca; unlexer = text ; lexer = text ;
+
+} ;