WooCommerce Composite Products 10.1.3

* Fix - Added compatibility with WordPress 5.3 and WooCommerce 3.8

* Fix - Missing check in selected component option button.

* Fix - Bundled items discount do not apply to the cart if component discount is empty.
* Fix - Make REST API calls return empty array for Composites without components.
* Fix - Component visibility cannot depend on matching conditions that reference currently hidden Components.