implement workflow_ng action to create node serie

It would be nice to have some actions in workflow_ng implemented by this module for creating nodes.
For example to create a serie of nodes base on a nodetype that functions as a template.

implementation of a function hook for workflow_ng to create an action for creating nodes in a serie.

function node_factory_action_info() {
  return array(
    'add_serie_nodes' => array(
      '#label' => t('Create childnodes based on a serie'),
      '#arguments' => array(
        'serie_node' => array('#entity' => 'node', '#label' => t('Source nodes as templates')),
        'target_nodetype' => array('#entity' => 'node', '#label' => t('Target_nodetype for the new nodes.')),
        'cckfield_serienodeID' => array('#entity' => 'node', '#label' => t('CCKfiled to place the serienodeId in.')),
      ),
      '#module' => t('Node'),
    ),
  );
}