CMS-9801 Add EnvironmentSettings service api which for now just has a get and put.

.gitattributes

@@ -4,6 +4,7 @@
 src/main/java/org/onehippo/cms7/services/HippoServiceException.java -text
 src/main/java/org/onehippo/cms7/services/SingletonService.java -text
 src/main/java/org/onehippo/cms7/services/autoreload/AutoReloadService.java -text
+src/main/java/org/onehippo/cms7/services/environment/EnvironmentSettings.java -text
 src/main/java/org/onehippo/cms7/services/eventbus/HippoEventListener.java -text svneol=unset#text/plain
 src/main/java/org/onehippo/cms7/services/eventbus/Subscribe.java -text
 src/main/java/org/onehippo/cms7/services/googleanalytics/GoogleAnalyticsService.java -text

src/main/java/org/onehippo/cms7/services/environment/EnvironmentSettings.java

+/*
+ *  Copyright 2016 Hippo B.V. (http://www.onehippo.com)
+ *
+ *  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 org.onehippo.cms7.services.environment;
+
+import org.onehippo.cms7.services.SingletonService;
+import org.onehippo.cms7.services.WhiteboardService;
+
+@SingletonService
+@WhiteboardService
+public interface EnvironmentSettings {
+
+    /**
+     * Returns the String value of the environment setting for {@code name}. The String value can represent a more complex
+     * object in case it is a json value
+     * @param name the name of the environment parameter
+     * @return the String value of the environment setting for {@code name}
+     */
+    String get(String name);
+
+    /**
+     * Puts a environment value for environment parameter {@code name}
+     * @param name the name of the environment parameter
+     * @param value the value of the environment parameter
+     */
+    void put(String name, String value);
+
+
+}