Add CCM (CMTrace) log file format option

[pl4nty]

📖 Description

Add a logging.format user setting that selects the format used when writing log entries to a file. The default winget value preserves the existing format, while ccm writes CCM-compatible lines so WinGet logs can be viewed with common IT admin tools (particularly CMTrace and OneTrace).

🔗 References

No issue for this one, but credit to @mjr4077au for the idea while we were chatting with chtulip.

🔍 Validation

Set logging.format to ccm, then opened some WinGetDev.exe logs with OneTrace and CMTrace

Open Questions

• Is this desirable? I wasn't able to find an open issue, but I've heard a few IT admins mention it
• Would this change need a release note?
• I suspect a Group Policy setting for this would be very useful, but maybe it should support the other logging options too

✅ Checklist

• Signed the Contributor License Agreement
• Linked to an issue
• Updated Release Notes (if applicable)
• Updated documentation (if applicable)
• Updated Copilot instructions (if build, architecture, or conventions changed)

📋 Issue Type

• Bug fix
• Feature
• Task

Microsoft Reviewers: Open in CodeFlow

[pl4nty]

Not sure this test and the new imports are necessary, since there isn't one for the existing format. Figured I'd submit just in case