Global refactoring of calculation, applying and displaying taxes for custom options
Adds taxes applying for dynamic options feature
Bug fix
Fixes specifying of custom options from while order creation in admin panel
Fixed characters encoding in dynamic options
Fixes stock calculation logic for ‘Qty multiplier’ feature
Fixes applying of ‘custom price’ while order creation in admin panel
Fixes special price calculation on frontend if special price feature is disabled in config
Fixes the issue with required custom options validation on product page if options are hidden
Fixes the ‘Unable to unserialize value’ issue while saving a product
Additional minor bug fixes