Add missing object for PN interface tests

integration/test_pn_interface.py

@@ -33,6 +33,7 @@ all_files = [   "pn_interface.alc",
                 "metamodels.alc",
                 "constructors.alc",
                 "modelling.alc",
+                "compilation_manager.alc",
             ]
 
 greeting =          ["Welcome to the Model Management Interface, running live on the Modelverse!",