Add protection to styles

[supermonkeybrainz]

This adds the protection option to styles for cells. This allows users to lock specific cells. There are other protection options, but this is a good start.

[supermonkeybrainz]

Allows you to do stuff like this:

  const styles = {
    // Create a reusable style
    unlocked: workbook.createStyle({
      protection: { hidden: false, locked: false },
    }),
  };

  worksheet
        .cell(1, 1)
        .string(`test`)
        .style(styles.unlocked);

Then you can lock the sheet like this:

    const worksheetOptions = {
      sheetProtection: { objects: true, scenarios: true, sheet: true },
    };
    const worksheet = workbook.addWorksheet('Test', worksheetOptions);