Licensed User Count by Role Using GlideAggregate

[sanjaykumar3sn]

PR Description:

This script efficiently calculates how many users are assigned to key licensed roles such as admin, itil, sys_approver, and business_stakeholder.
By leveraging GlideAggregate, it runs entirely at the database layer, ensuring quick and accurate results for license and compliance reporting.

Pull Request Checklist

Overview

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Code Quality

• My code is relevant to ServiceNow developers
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[sanjaykumar3sn]

All changes are appropriate

[kmxo]

There is more than one folder in this PR. Please review the submitted files and folders.
Thank you.