@Override
    public void write(DataWriter out) throws IOException {
        out.writeInt(serializedFileIndex);
        out.writeLong(identifierInFile);
    }
@author Nico Bergemann <barracuda415 at yahoo.de>
@unity LocalSerializedObjectIdentifier
disunity-core/src/main/java/info/ata4/junity/serialize/objectidentifier/ObjectIdentifier.java