WooCommerce Catalog Visibility Options 3.3.4

* New: Add location filters to individual products for who can purchase and who can view prices.
* New: Add role and location filters to categories for who can purchase and who can view prices.
* New: Update location filters to be inclusive or exclusive on individual products.
* Update: Update API in prep for the Product Data Tables move in WC core.
* Update: Allow adding to the cart even if prices are disabled.
* Fix: Fix issue where "What locations can view this product" were not compatible with newer versions of WooCommerce.

* Fix: Fix issue with the extension not hiding add to cart button for simple products.

* Fix: Fix issue with duplicate variation descriptions being output, due to the change in hook order in WC core 3.4.1
* Update: Merge logic between the separate filtering functions for global and product level.
* Update: Code refactorings to support the logic move. More to come in 3.1.4
* Fix: Fix problem with un-setting product offers.
* Fix Fix formatting of location selector.
* Update: Version bump. Tested to WordPress 4.9.6.
* Update: WC tested up to: 3.4.2.
* Update: Add support to target Guest roles in product specific pricing and purchasing rules.
* New: New Filter - Added catalog_visibility_alternate_cart_item_price_html
* New: New Filter - Added catalog_visibility_alternate_price_html
* New: Added option to allow management of product visibility by States / Regions in addition to Countries.