added sonar plugin to settings.xml

settings.xml

@@ -57,7 +57,25 @@
   </mirrors>
 
   <profiles>
-
+    <profile>
+      <id>sonar</id>
+      <activation>
+        <activeByDefault>true</activeByDefault>
+      </activation>
+      <properties>
+        <!-- Optional URL to server. Default value is http://localhost:9000 -->
+        <sonar.host.url>
+          https://metric.se.rwth-aachen.de
+        </sonar.host.url>
+        <sonar.login>
+          jenkins
+        </sonar.login>
+        <sonar.password>
+          ${env.sonar}
+        </sonar.password>
+      </properties>
+    </profile>
+    
     <profile>
       <id>se-nexus</id>
       <repositories>