* Add supports data to payment methods abstractions. Implement in Stripe.
* Add capabilities to the payment gateway.
* Payment requirements in cart schema.
* Supported features format update.
* Formatting.
* Check required payment features.
* Refactor capabilieties check.
* No need for the cart parameter.
* Allow external modifiacation of features capability.
* Use ExtendRestApi to inject payment requirements into cart endpoint.
* Simplify the code.
* Enable more integrations.
* Enable Stripe payment request.
* Move the filter to a more correc location.
* Add features check.
* Update typedefs and documentation.
* Update tests with new functionality.
* Style fixes.
Bartosz Budzanowski