Add documentation for lockdownd_get_sync_data_classes/data_classes_free()
Add documentation for lockdownd_get_sync_data_classes/data_classes_free()

libimobiledevice-win32/libimobiledevice,upbit/libimobiledevice,patweb/libimobiledevice,kalev/libimobiledevice,upbit/libimobiledevice,libimobiledevice-win32/libimobiledevice,libimobiledevice-win32/libimobiledevice,kalev/libimobiledevice,upbit/libimobiledevice,Tatsh/libimobiledevice,patweb/libimobiledevice,Tatsh/libimobiledevice,libimobiledevice/libimobiledevice,kalev/libimobiledevice,Tatsh/libimobiledevice,libimobiledevice-win32/libimobiledevice,libimobiledevice/libimobiledevice,patweb/libimobiledevice,Tatsh/libimobiledevice