Summary:
Android and iOS have different RNTester examples even though they should be mostly the same. Pull out the common ones into their own file. This should also be useful for other platforms.
Changelog:
[Internal]
(Note: this ignores all push blocking failures!)
Reviewed By: JoshuaGross
Differential Revision: D18628890
fbshipit-source-id: 6f1312973aebcfc687fdd8807bf942e48172f216
Eli White