Fixed cli schematics & added tests

unittests/unittests_core/test_startup_extension.py

@@ -0,0 +1,16 @@
+from cpl_core.application.startup_extension_abc import StartupExtensionABC
+from cpl_core.configuration.configuration_abc import ConfigurationABC
+from cpl_core.dependency_injection.service_collection_abc import ServiceCollectionABC
+from cpl_core.environment.application_environment_abc import ApplicationEnvironmentABC
+
+
+class TestStartup_extension(StartupExtensionABC):
+
+    def __init__(self):
+        pass
+
+    def configure_configuration(self, config: ConfigurationABC, env: ApplicationEnvironmentABC):
+        pass
+
+    def configure_services(self, services: ServiceCollectionABC, env: ApplicationEnvironmentABC):
+        pass