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

next-lib/src/abstract/Lang.gf

@@ -0,0 +1,13 @@
+--1 Lang: a Test Module for the Resource Grammar
+
+-- This grammar is for testing the resource as included in the
+-- language-independent API, consisting of a grammar and a lexicon.
+-- The grammar without a lexicon is [``Grammar`` Grammar.html],
+-- which may be more suitable to open in applications.
+
+abstract Lang = 
+  Grammar,
+  Lexicon
+  ** {
+  flags startcat=Phr ;
+  } ;