TileByteStream: Remove usage of "extern" ByteStream_StorageType
This is a follow-up MR to !21339 (merged) in order to remove the usage of the extern symbol ByteStream_StorageType from all Tile bytestream converters.
This is a follow-up MR to !21339 (merged) in order to remove the usage of the extern symbol ByteStream_StorageType from all Tile bytestream converters.