wlog.go
func New(reader io.Reader, writer, errorWriter io.Writer) *BasicUI {
	return &BasicUI{
		Reader:      reader,
		Writer:      writer,
		ErrorWriter: errorWriter,
	}
}
func New(reader io.Reader, writer, errorWriter io.Writer) *BasicUI {
	return &BasicUI{
		Reader:      reader,
		Writer:      writer,
		ErrorWriter: errorWriter,
	}
}
//New creates a BasicUI.
//This should be the first function you call.
//This is not thread safe and should only be used in serial applications.