Function compare_readers_with_options 

pub fn compare_readers_with_options<R1, R2>(
    old: R1,
    new: R2,
    opts: DiffOptions,
) -> Result<WorkbookDiff, SheetsDiffError>
where
    R1: Read + Seek,
    R2: Read + Seek,

Compare two workbooks given Read + Seek readers, with explicit options.