Implements hook_field_formatter_info_alter().
Edit extends the @FieldFormatter annotation with the following keys:
function edit_field_formatter_info_alter(&$info) {
foreach ($info as $key => $settings) {
// Set in-place editor to form if none is supplied.
if (empty($settings['edit'])) {
$info[$key]['edit'] = array(
'editor' => 'form',
);
}
}
}