YITH WooCommerce Product Bundles Premium 2.4.0

* New - possibility to set minimum quantity to zero for bundled items
* New - support to YITH WooCommerce Deposits and Down Payments
* Update - plugin framework
* Update - language files
* Fix - integration with YITH WooCommerce Request a Quote
* Fix - enable/disable add-to-quote button in combination with YITH WooCommerce Request a Quote
* Fix - shipping issue in combination with YITH WooCommerce Multi Vendor
* Fix - attributes not shown when adding to the cart bundles with variable products
* Fix - prevent adding bundle products in orders through 'Add products' box
* Tweak - fixed text-domain for some strings
* Dev - added yith_wcpb_wc_dropdown_variation_attribute_options function
* Dev - added yith_wcpb_use_wc_dropdown_variation_attribute_options filter
* Dev - added params to yith_wcpb_before_bundle_woocommerce_add_to_cart action
* Dev - added params to yith_wcpb_after_bundle_woocommerce_add_to_cart params
* Dev - added yith_wcpb_ajax_get_bundle_total_price_response filter
* Dev - added params to JS trigger yith_wcpb_ajax_update_price_request

* New - integration with YITH WooCommerce Name Your Price 1.1.5
* Update - language files
* Update - plugin framework
* Fix - fatal error 'Call to undefined method YITH_WC_Bundled_Item::get_raw_title()'
* Fix - show variation name inside request a quote list table
* Tweak - prevent notice when adding to cart bundle

* Fix - support to WPML
* Tweak - removed deprecate woocommerce_stock_html filter by using wc_get_stock_html function
* Dev - added yith_wcpb_default_bundle_item_description filter