Include protected 'email subject' name in 'file name' column for protected email usage

[mevaibhav83]

Issue: There no way to identify email associated protection usage by its friendly name i.e. email subject name.

Issue Detail:

• Get-AipServiceUserLog powershell command can pull report for protected content usage activities but there is no way to identify email with and ‘file-name’ column does not show name of email subject if activity is associated to protected email.
• As per documentation (https://learn.microsoft.com/en-us/azure/information-protection/log-analyze-usage#the-blob-format), ‘file-name’ column only contains name of file like doc.docx (which is currently looks to be broken and already been reported at Github : Get-AipServiceUserLog - ‘file-name’ column value is blank #10) but ‘file-name’ column does not have email subject if that protected content is email
• Interpreting log from Get-AipServiceUserLog is difficult unless there is sufficient (and easy to understand) supporting information

Ask: To be able to identity email by it’s subject either ‘email subject’ being part of ‘file-name’ column or in separate column