Menu callback: displays the 'Add new test_entity' form.
function field_test_entity_add($fttype) {
$fttype = str_replace('-', '_', $fttype);
$entity = (object) array(
'fttype' => $fttype,
);
drupal_set_title(t('Create test_entity @bundle', array(
'@bundle' => $fttype,
)), PASS_THROUGH);
return drupal_get_form('field_test_entity_form', $entity, TRUE);
}