extract a new class EventReaderComposite from EventReaderPackageBundle
extract a new class EventReaderComposite from EventReaderPackageBundle

TaiSakuma/AlphaTwirl,alphatwirl/alphatwirl,alphatwirl/alphatwirl,alphatwirl/alphatwirl,TaiSakuma/AlphaTwirl,alphatwirl/alphatwirl