Add missing license header and usubscription export

Author: AnotherDaniel

src/core/udiscovery.rs

@@ -1,3 +1,16 @@
+/********************************************************************************
+ * Copyright (c) 2024 Contributors to the Eclipse Foundation
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information regarding copyright ownership.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Apache License Version 2.0 which is available at
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ ********************************************************************************/
+
 pub use crate::up_core_api::udiscovery::{
     node::Type, notification::Operation, notification::Resources, AddNodesRequest,
     DeleteNodesRequest, FindNodesRequest, FindNodesResponse, LookupUriResponse, Node,

src/core/usubscription.rs

@@ -1,9 +1,23 @@
+/********************************************************************************
+ * Copyright (c) 2024 Contributors to the Eclipse Foundation
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information regarding copyright ownership.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Apache License Version 2.0 which is available at
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ ********************************************************************************/
+
 pub use crate::up_core_api::usubscription::{
     subscription_status::State, EventDeliveryConfig, FetchSubscribersRequest,
     FetchSubscriptionsRequest, FetchSubscriptionsResponse, NotificationsRequest,
     SubscribeAttributes, SubscriberInfo, SubscriptionRequest, SubscriptionResponse,
-    SubscriptionStatus, UnsubscribeRequest,
+    SubscriptionStatus, UnsubscribeRequest, Update,
 };
+
 use crate::UStatus;
 use async_trait::async_trait;
 

src/core/utwin.rs

@@ -1 +1,14 @@
+/********************************************************************************
+ * Copyright (c) 2024 Contributors to the Eclipse Foundation
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information regarding copyright ownership.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Apache License Version 2.0 which is available at
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ ********************************************************************************/
+
 pub use crate::up_core_api::utwin::{GetLastMessagesResponse, MessageResponse};