getFormClosure does not allow passing of form options

[richsage]

As per title. There doesn't seem to be a way to pass options to the closure when creating a form. I'll sort out a PR if I get some spare time...

Edit to clarify, I want to be able to pass options through from my custom action, eg:

$getFormClosure = $this->getActionsVars()->get('getFormClosure');
$form = $getFormClosure($data, $this, $this->container, array("my_option" => 123));