YITH WooCommerce Barcodes and QR Codes Premium 2.34.0

* New: support WooCommerce 4.2
* New: added new libraries for the Barcodes and QR Codes
* New: added new option to generate the product barcode using the product id, sku or a custom field
* New: added new option to generate the order barcode using the order id, number or a custom field
* New: added a new option to regenerate the already applied barcodes
* New: now it is possible to use the product URL to generate the QR Codes
* New: added new options to the plugin shortcodes, now it's possible to add automatic actions, like decrease or increase product stock by scan
* New: Added new option to print barcodes by product and with specific quantity
* New: added plugin shortcodes as widgets in Elementor
* Tweak: UI and UX improved
* Tweak: improved the products printed document
* Update: updated plugin fw
* Update: plugin language
* Dev: added new filter 'yith_wcbc_plugin_settings_capability'

* New: support WooCommerce 4.1
* New: added new shortcode yith_render_post_barcode to display the actual post barcode
* New: added French translation, thanks to Josselyn Jayant
* Fix: fixed a possible issue in the print barcodes
* Dev: preparing things for the version 2.0

* Fix: fixed an error with the cssInliner class