Notifies your Application of purchasing related events.
See Also: Product for an example implementation.
| OnInitialized | Called when Unity IAP has retrieved all product metadata and is ready to make purchases. |
| OnInitializeFailed | Note that Unity IAP will not call this method if the device is offline, but continually attempt initialization until online. |
| OnPurchaseFailed | Called when a purchase fails. |
| ProcessPurchase | Called when a purchase succeeds. |