Gravity Perks - Inventory 1.0-beta-3.37

Improved support for using scoped inventory with forms embedded using the Gravity Forms Product Add-ons WooCommerce extension.
Improved support for using multi-input fields (e.g. Date configured as Date Field) as scopes.

Fixed an issue where choice-based product fields with the same value/label but different price were not correctly sharing inventory during the validation step.

Added gpi_limit_by_paid_entries_only filter to allow filtering whether only paid entries should count towards inventory limits.