Configures Unity IAP with one or more store implementations.
Passed into IPurchasingModules during Unity IAP initialization.
See Also: IPurchasingModule.
| RegisterConfiguration | Informs Unity IAP that extended Configuration is available. |
| RegisterExtension | Informs Unity IAP that a store extension is available. |
| RegisterStore | Informs Unity IAP that a store implementation exists, specifying its name. |