WooCommerce Conditional Shipping and Payments 2.0.4

* Important - Added integration with WooCommerce Gift Cards - see WooCommerce Gift Cards - Official Plugin.
* Feature - Conditionally prevent customers from paying with gift cards. Useful for restricting gift card usage to specific products, categories, customers, etc.
* Feature - Added 'Gift Cards' condition to conditionally exclude payment options depending on whether a gift card is used to pay for an order, partially or fully.
* Feature - Added 'Gift Card Product' condition to conditionally exclude payment options depending on whether a gift card is used to pay for an order, partially or fully.
* Tweak - Made 'get_resolution_message' method public.

* Important - Declared compatibility with WooCommerce 4.1.
* Feature - Added 'Product On Sale' condition.
* Fix - Restrictions toggle not working due to a recent regression.
* Fix - Warning at checkout when using the Klarna Payments gateway.
* Tweak - Added 'WC_CSP()->plugin_initialized()' method.
* Tweak - Ensure that the sw-select script is loaded before displaying notices.
* Tweak - Enter custom shipping rate IDs with a delimiter character by wrapping it in '%', like '%|%'.

* Important - Declared compatibility with WooCommerce 4.0.
* Feature - Added 'woocommerce_csp_package_item_quantity_count' filter. This filter can be used to limit the Package Item condition to specific package items.