Billing Portal session (#271)

WIP (#269)

feat(marketing features): Adding Product Marketing Feature (#268)

add expand to products (#260)

Co-authored-by: Andrew Edwards <[email protected]>

Make Currency CaseIterable (#259)

Co-authored-by: Andrew Edwards <[email protected]>

Implement `encode(to:)` method of `Event` (fixes #252) (#255)

New codes for ConnectAccountRequirementsErrorCode (#250)

* New codes for ConnectAccountRequirementsErrorCode

* Changed indentation to spaces

Add card network enum case `eftpos_au` (#248)

Fix PaymentIntent cancelation (#245)

* add abandoned case to PaymentIntentCancellationReason

* remove invalid cases

* Update cancellation reason enums.

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Co-authored-by: Andrew Edwards <[email protected]>

Restore defaultForCurrency variable in the Card (#238)

* Rollback defaultForCurrency variable in the Card

* Add subscription_details to Invoice

* Make SubscriptionDetails codable

* Add subscription_details to PaymentIntent

* Revert "Add subscription_details to PaymentIntent"

This reverts commit 745c48c.

* Add defaultForCurrency to the initializer

* Add subscriptionDetails to the initializer

* Add a public initializer for SubscriptionDetails

* Add a default nil param for SubscriptionDetails init