3826 [in_app_purchase_platform_interface] Added additional fields to ProductDetails (cla: yes, p: in_app_purchase)

3831 [in_app_purchase] Make PurchaseDetails.status mandatory (cla: yes, p: in_app_purchase)

3832 [in_app_purchase] Federated iOS implementation (cla: yes, waiting for tree to go green, p: in_app_purchase, platform-ios)

3841 [in_app_purchase] Federated Android implementation (cla: yes, p: in_app_purchase, platform-android)

3845 [in_app_purchase] Add warning in readme for double import of the Android billing client library (cla: yes, p: in_app_purchase)