moved emane dependent tests into subdir, moved pytest config into setup.cfg, added CoreError and made use of in session.py

daemon/core/services/coreservices.py

@@ -415,7 +415,7 @@ class CoreServices(object):
                 )
                 continue
             logging.info("adding service to node(%s): %s", node.name, service_name)
-            node.addservice(service)
+            node.services.append(service)
 
     def all_configs(self):
         """