WooCommerce Dynamic Pricing & Discounts 2.4.5

* Feature - New promotion tool "Cart Item Descriptions" to display public descriptions
* Feature - Option to prevent regular coupon use when product pricing rules apply
* Fix - Regular price not displayed when product is discounted
* Tweak - Other minor bug fixes and improvements

* Fix - Performance issues related to missing cart item key in pricing test runs
* Fix - "Display regular price when discounting" affects default WooCommerce behaviour
* Fix - Promotion tools do not display safe HTML tags
* Fix - is_ajax() deprecated warning
* Tweak - Additional shop price caching layer for increased performance
* Tweak - Cart item handling performance improvements
* Tweak - Other minor bug fixes and improvements