[Library]: Add copy function on HelperFunctions

git-svn-id: https://svn.driver.research-infrastructures.eu/driver/dnet40/modules/uoa-services-library/trunk/ng-openaire-library/src/app@57573 d315682c-612b-4755-9ff5-7f18f6832af3

utils/HelperFunctions.class.ts

@@ -12,4 +12,8 @@ export class HelperFunctions {
   public static isTiny(url: string) {
     return (url.indexOf('tinyurl.com') !== -1);
   }
+
+  public static copy(element: any): any {
+    return JSON.parse(JSON.stringify(element));
+  }
 }