[generate:plugin:ckeditorbutton] Missing method visibility for generated CKEditor Plugin

[dabito]

Problem/motivation

Public visibility is missing in generated ckeditor plugin methods:

Solution

Add public visibility to the following methods in the ckeditor plugin template:

  /**
   * {@inheritdoc}
   */
  function isInternal() {
    return FALSE;
  }

  /**
   * {@inheritdoc}
   */
  function getDependencies(Editor $editor) {
    return array();
  }

  /**
   * {@inheritdoc}
   */
  function getLibraries(Editor $editor) {
    return array();
  }