add missing cwuri in ifulltextindex adapter

`esearch` view relies on this attr

entities.py

@@ -36,6 +36,7 @@
             'cw_etype': entity.cw_etype,
             'cw_source': entity.cw_metainformation()['source']['uri'],
             'eid': entity.eid,
+            'cwuri': entity.cwuri,
         }
         for rschema in entity.e_schema.indexable_attributes():
             attr = rschema.type