3744 [in_app_purchase] create sub folder  (cla: yes, p: in_app_purchase, platform-android, platform-ios, waiting for tree to go green)

3749 [in_app_purchase] Fixed some minor spelling mistakes in README (cla: yes, p: in_app_purchase)

3750 [in_app_purchase] Fix error message when trying to consume purchase on iOS (cla: yes, p: in_app_purchase)

3751 Revert “[in_app_purchase] Fix error message when trying to consume purchase on iOS” (cla: yes, p: in_app_purchase)

3752 [in_app_purchase] Fix error message when trying to consume purchase on iOS (cla: yes, p: in_app_purchase)