All classes that implement CKEditorPluginInterface in Zircon Profile 8

class \Drupal\ckeditor\CKEditorPluginBase implements CKEditorPluginButtonsInterface, CKEditorPluginInterface
class \Drupal\ckeditor\Plugin\CKEditorPlugin\DrupalImage implements CKEditorPluginConfigurableInterface
class \Drupal\ckeditor\Plugin\CKEditorPlugin\DrupalImageCaption implements CKEditorPluginContextualInterface, CKEditorPluginInterface
class \Drupal\ckeditor\Plugin\CKEditorPlugin\DrupalLink
class \Drupal\ckeditor\Plugin\CKEditorPlugin\Internal implements ContainerFactoryPluginInterface
class \Drupal\ckeditor\Plugin\CKEditorPlugin\StylesCombo implements CKEditorPluginConfigurableInterface
class \Drupal\ckeditor_test\Plugin\CKEditorPlugin\Llama implements CKEditorPluginInterface
class \Drupal\ckeditor_test\Plugin\CKEditorPlugin\LlamaButton implements CKEditorPluginButtonsInterface
class \Drupal\ckeditor_test\Plugin\CKEditorPlugin\LlamaContextual implements CKEditorPluginContextualInterface
class \Drupal\ckeditor_test\Plugin\CKEditorPlugin\LlamaContextualAndButton implements CKEditorPluginButtonsInterface, CKEditorPluginConfigurableInterface, CKEditorPluginContextualInterface

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