feat(automation): introduce Util.toString() method

src/automation/src/main/java/eu/teraflow/automation/common/Util.java

+/*
+* Copyright 2021-2023 H2020 TeraFlow (https://www.teraflow-h2020.eu/)
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package eu.teraflow.automation.common;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class Util {
+
+    private Util() {}
+
+    public static <T> String toString(List<T> list) {
+        return list.stream().map(T::toString).collect(Collectors.joining(", "));
+    }
+}