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

next-lib/src/demo/DemoRus.gf

@@ -0,0 +1,16 @@
+--# -path=.:alltenses
+
+concrete DemoRus of Demo = 
+  NounRus,
+  ClauseRus,
+  AdjectiveRus,
+  AdverbRus,
+  NumeralRus,
+  QuestionRus,
+  StructuralRus,
+  LexiconRus
+  ** {
+
+flags language = ru; unlexer = text ; lexer = text ;
+
+} ;