Supporting `createTemplate()`

[craigfrancis]

It looks like twigcs is setup to check the *.twig files in a folder.

Do you think it would possible to check other sources, e.g.

echo $twig->createTemplate('Hi {{ name }}')->render(['name' => 'Name']);

$loader = new \Twig\Loader\ArrayLoader([
		'index' => 'Hi {{ name }}',
	]);

$twig = new \Twig\Environment($loader);

echo $twig->render('index', ['name' => 'Name']);

{{ include(template_from_string('Hi {{ name }}')) }}