Function to update "filterPrivacy' from workbook > workbookPr

[JDavidVR]

@xuri this is related to #1148 vba improvement

When I create a .xlsm with macro code, it generates this content for xl/workbook.xml

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<workbook xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main"
          xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships">
    <fileVersion appName="xl" lastEdited="5" lowestEdited="5" rupBuild="9303"
                 codeName="{8C4F1C90-05EB-6A55-5F09-09C24B55AC0B}"/>
    <workbookPr codeName="ThisWorkbook"/>

And with latest version of excelize:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<workbook xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main"
          xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships">
    <fileVersion appName="xl" lastEdited="5" lowestEdited="5" rupBuild="9303"
                 codeName="{8C4F1C90-05EB-6A55-5F09-09C24B55AC0B}"/>
    <workbookPr filterPrivacy="1" codeName="ThisWorkbook"/>

it adds filterPrivacy="1"

the problem with that is that excel does a kind of validation everytime a file with macro is saved, and shows this message:

Here are the steps to fix it manually: https://www.extendoffice.com/documents/excel/1908-excel-stop-privacy-warning-on-save.html

So that configuration updates the xl/workbook.xml file and removes filterPrivacy="1"

thanks in advance

[JDavidVR]

@xuri I think I've figured it out, please can you review this PR: #1154

[JDavidVR]

Fixed on this commit: #1159