Summary:
This diff filters the iOS C++ friles that are generated by the oss-android-codegen script
Also, as part of this diff I'm inlcuding .cpp files into the output.
These files are only used and compiled in Android
changelog: [internal] internal
Reviewed By: fkgozali
Differential Revision: D23169268
fbshipit-source-id: 404607f3cd6e59197291ea67701774c9c492a282