Break Controller / List of reports dependencies

You can break some dependencies between your controller and services if you add some functions like :

  /**
    * @return string[] 
    *       name of reports aviables
  **/
  getAviableReports()

  /**
    * @param string 
    *      report name
    */
  isAviableReport($name) {
    // test module dependencies
  }

  /**
    * @return array
   *   Display a table of the image styles used in fields.
   **/
   getReport($name)