SEBA-113 s-tag support for "any" and ranges

Change-Id: Ifcec2c42b16a835338b2e7f703dad0bc31931cfe
diff --git a/xos/unittest.cfg b/xos/unittest.cfg
index 0dc4ba0..e35af11 100644
--- a/xos/unittest.cfg
+++ b/xos/unittest.cfg
@@ -3,6 +3,7 @@
 code-directories=synchronizer
                  model_policies
                  steps
+                 models
 
 [coverage]
 always-on = True