Custom schema.org itemtypes filter
There doesn't seem to be a way to filter the schema.org `itemtype` attribute on articles and right now, all attributes are set to "CreativeWork", which is not always correct for things like events, recipes, products, etc.
Looking at the `single.php` template, I see this:
I know I can create a `single-product.php` file in a child theme but I'm trying to avoid doing that to cater for just one (tiny) change. I can see you already have a `wpbf_body_itemtype` filter so can I suggest a similar function to cater for a `wpbf_article_itemtype` filter which defaults to `CreativeWork' but can be overwritten?