YITH WooCommerce Gift Cards Premium 4.22.0

* Tweak: Changed 'yith_ywgc_give_product_as_present' apply filter position in the condition.
* Tweak: Changed private to public function to notify when a gift card is used.
* Tweak: added the delivery data in the order info on my account
* Update: updated .pot file
* Update: updated Plugin Framework
* Update: updated FR .po and .mo
* Update: Updated Spanish translation
* Fix: fixed a string on German
* Fix: Fixed today time compare with delivery date time.
* Dev: Added new filter 'yith_ywgc_gift_card_coupon_message'.
* Dev: added new filter to the formatted price on email and pdf, yith_wcgc_email_template_formatted_price & yith_wcgc_pdf_template_formatted_price
* Dev: added new param to the yith_ywgc_apply_gift_card_discount_before_cart_total hook
* Dev: added new filter ywgc_design_section_customize
* Dev: Added new parameters in a filter and action of gift card template.

New: added new shortcode yith_ywgc_display_gift_card_form to display the gift card form
Update: updated .pot file
Update: updated Plugin Framework
Update: Updated Dutch translation
Fix: PayPal issue with shipping costs
Fix: fixed the date picker format
Fix: fixing a string
Dev: added a new param to a function to avoid warnings
Dev: added new filter yith_gift_cards_template_amount_title
Dev: Default value for email trigger args

Fix: include all gift cards in conversion process of gift card dates