Issue #2287889 by larowlan: Add information to field topics needed by plugin developers

core/lib/Drupal/Core/Field/Annotation/FieldFormatter.php

core/lib/Drupal/Core/Field/Annotation/FieldType.php

core/lib/Drupal/Core/Field/Annotation/FieldWidget.php

core/lib/Drupal/Core/Field/FieldItemBase.php

core/lib/Drupal/Core/Field/FieldItemInterface.php

core/lib/Drupal/Core/Field/FieldTypePluginManager.php

...lib/Drupal/Core/Field/FieldTypePluginManagerInterface.php

core/lib/Drupal/Core/Field/FormatterBase.php

core/lib/Drupal/Core/Field/FormatterInterface.php

core/lib/Drupal/Core/Field/FormatterPluginManager.php

core/lib/Drupal/Core/Field/WidgetBase.php

core/lib/Drupal/Core/Field/WidgetInterface.php

core/lib/Drupal/Core/Field/WidgetPluginManager.php

core/modules/field/field.api.php

core/modules/field/field.module