Enable configurable user mapping from Confluence to SharePoint

[heinrich-ulbricht]

When migrating from Confluence to SharePoint user accounts have to be mapped.

This can be done:

• automatically
• manually

The following cases have to be considered:

• user account exists in Azure AD
• user does not exist in Azure AD
• user account is disabled or unlicensed in Azure AD?

Mapping criteria:

• email address
• ...

Something along the lines of https://learn.microsoft.com/en-us/sharepointmigration/create-a-user-mapping-file-for-data-content-migration

[heinrich-ulbricht]

We have a first implementation. Details are highlighted in the blog post https://www.wikitransformationproject.com/blog/2023/01/01/mapping-principals-and-migrating-permissions/

More could probably be done but this would be guided by user feedback.