[ONOS-4799],[ONOS-4351] Augment inter file linker and Generated Code refactored.

Change-Id: Id1f3ac9c90a632373f51cc75d499c3110216be17
diff --git a/utils/yangutils/plugin/src/test/java/org/onosproject/yangutils/ietfyang/IetfYangFileTest.java b/utils/yangutils/plugin/src/test/java/org/onosproject/yangutils/ietfyang/IetfYangFileTest.java
index 49c5d60..7176760 100644
--- a/utils/yangutils/plugin/src/test/java/org/onosproject/yangutils/ietfyang/IetfYangFileTest.java
+++ b/utils/yangutils/plugin/src/test/java/org/onosproject/yangutils/ietfyang/IetfYangFileTest.java
@@ -16,16 +16,16 @@
 
 package org.onosproject.yangutils.ietfyang;
 
+import java.io.IOException;
+
 import org.apache.maven.plugin.MojoExecutionException;
 import org.junit.Test;
 import org.onosproject.yangutils.linker.impl.YangLinkerManager;
 import org.onosproject.yangutils.parser.exceptions.ParserException;
 import org.onosproject.yangutils.parser.impl.YangUtilsParserManager;
 import org.onosproject.yangutils.plugin.manager.YangUtilManager;
-import org.onosproject.yangutils.utils.io.impl.YangPluginConfig;
 import org.onosproject.yangutils.utils.io.impl.YangFileScanner;
-
-import java.io.IOException;
+import org.onosproject.yangutils.utils.io.impl.YangPluginConfig;
 
 import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.deleteDirectory;
 
@@ -54,6 +54,7 @@
         String userDir = System.getProperty("user.dir");
         YangPluginConfig yangPluginConfig = new YangPluginConfig();
         yangPluginConfig.setCodeGenDir("target/ietfyang/l3vpnservice/");
+        yangPluginConfig.setManagerCodeGenDir("target/ietfyang/l3vpnservice/");
 
         utilManager.translateToJava(utilManager.getYangFileInfoSet(), yangPluginConfig);