* User data/meta -> nothing store on user data/meta

* Options:
	⁃	ywgc_gift_this_product_add_to_cart
	⁃	ywgc_gift_this_product_apply_gift_card
	⁃	ywgc_minimal_amount_gift_card
	⁃	ywgc_usage_expiration
	⁃	ywgc_minimal_car_total
	⁃	ywgc_gift_this_product_email_button_redirect
	⁃	ywgc_gift_this_product_redirected_page
	⁃	ywgc_gift_this_product_email_button_label
	⁃	ywgc_permit_free_amount
	⁃	ywgc_permit_its_a_present_shop_page
	⁃	ywgc_permit_its_a_present_product_image
	⁃	ywgc_physical_details
	⁃	ywgc_physical_details_mandatory
	⁃	ywgc_permit_modification
	⁃	ywgc_enable_send_later
	⁃	ywgc_notify_customer
	⁃	ywgc_blind_carbon_copy
	⁃	ywgc_auto_discount
	⁃	ywgc_restricted_usage
	⁃	ywgc_custom_design
	⁃	ywgc_template_design
	⁃	ywgc_allow_multi_recipients
	⁃	ywgc_order_cancelled_action
	⁃	ywgc_order_refunded_action
	⁃	ywgc_enable_pre_printed
	⁃	ywgc_custom_image_max_size
	⁃	ywgc_shop_logo_url
	⁃	ywgc_shop_logo_on_gift_card
	⁃	ywgc_template_style
	⁃	ywgc_recipient_mandatory
	⁃	ywgc_show_recipient_on_cart
	⁃	ywgc_show_preset_title
	⁃	ywgc_code_pattern
	⁃	ywgc_minimal_amount_gift_card
	⁃	ywgc_gift_this_product_label

* Order custom post type meta:
	⁃	_ywgc_product_id
	⁃	_ywgc_amount
	⁃	_ywgc_is_manual_amount
	⁃	_ywgc_is_digital
	⁃	_ywgc_is_physical
	⁃	_ywgc_recipients
	⁃	_ywgc_sender_name
	⁃	_ywgc_recipient_name
	⁃	_ywgc_message
	⁃	_ywgc_postdated
	⁃	_ywgc_design_type
	⁃	_ywgc_has_custom_design
	⁃	_ywgc_design
	⁃	_ywgc_subtotal
	⁃	_ywgc_subtotal_tax
	⁃	_ywgc_version
	⁃	_yith_cog_item_tax
	⁃	_ywpi_product_regular_price
	⁃	_ywpi_product_sku
	⁃	_ywpi_product_short_description
	⁃	_ywgc_gift_card_post_id
	⁃	_ywgc_gift_card_code

* Product custom post type meta:
	⁃	_ywgc_is_digital
	⁃	_ywgc_product_image
	⁃	_gift_card_amounts
	⁃	_ywgc_show_product_template_design
	⁃	_ywgc_manual_amount_mode
	⁃	_yith_wcgc_gift_this_product

* gift_card custom post type meta:
	⁃	_ywgc_order_id
	⁃	_ywgc_customer_id
	⁃	_ywgc_balance_total
	⁃	_ywgc_amount_total
	⁃	_ywgc_sender_name
	⁃	_ywgc_recipient_name
	⁃	_ywgc_recipient
	⁃	_ywgc_message
	⁃	_ywgc_currency
	⁃	_ywgc_version
	⁃	_ywgc_postdated
	⁃	_ywgc_has_custom_design
	⁃	_ywgc_expiration
	⁃	_ywgc_design_type
	⁃	_ywgc_design
	⁃	_ywgc_product_as_present
	⁃	_ywgc_present_product_id
	⁃	_ywgc_present_variation_id
	⁃	_ywgc_is_manual_amount
	⁃	_ywgc_is_digital
	⁃	_ywgc_internal_notes

* Custom database tables: No custom database tables

* Files: Files store on "wp-content/uploads/yith-gift-cards/" such custom images for gift cards