YITH Woocommerce Dynamic Pricing and Discounts Premium 4.15.0

* New: Support for WooCommerce 5.3
* Update: YITH plugin framework
* Fix: Issues with cart conditions on cart rules

* Update: YITH plugin framework
* Dev: Added ywdpd_table_orientation filter to change the quantity table layout
* Fix: Cart rules not scheluding correctly
* Fix: Cart rule condition check for amount of orders did not work properly
* Tweak: Improve script to update also prices for the variation product with quantity table.

* Update: YITH plugin framework
* Update: Language files
* Fix: Discounted price not showing up in cart if the price is displayed tax excluded on the cart page