added stack trace log on error

samples/list.noja

@@ -3,4 +3,11 @@
 l = [1, 2, 3, 4];
 
 print('The list contains ', count(l), ' items.\n');
-print('The list is: ', l, '.\n');
+print('The list is: ', l, '.\n');
+
+
+fun fail()
+	assert(false);
+
+
+fail();