Merge branch 'implement-remaining-mqttsubmodelrepo-methods' of https:…

…//github.com/ShehriyarShariq-Fraunhofer/basyx-java-server-sdk into implement-remaining-mqttsubmodelrepo-methods

basyx.submodelrepository/basyx.submodelrepository-feature-mqtt/src/main/java/org/eclipse/digitaltwin/basyx/submodelrepository/feature/mqtt/MqttSubmodelRepository.java

@@ -1,3 +1,28 @@
+/*******************************************************************************
+ * Copyright (C) 2024 the Eclipse BaSyx Authors
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ * SPDX-License-Identifier: MIT
+ ******************************************************************************/
+
 package org.eclipse.digitaltwin.basyx.submodelrepository.feature.mqtt;
 
 import java.io.File;