api: adding current status field to plan api

[dheyay]

Why is this needed?

This PR adds a field displaying the current_status of the cve to show if a system is currently affected by a cve/usn before the fix plan is executed. The field is returned as a part of the plan api.

Test Steps

Checklist

• [x] I have updated or added any unit tests accordingly
• [x] I have updated or added any integration tests accordingly
• [ ] Changes here need to be documented, and this was done in:

Does this PR require extra reviews?

• [ ] Yes
• [x] No

[github-actions[bot]]

Jira: This PR is not related to a Jira item. (The PR title does not include a SC-#### reference)

GitHub Issues: No GitHub issues are fixed by this PR. (No commits have Fixes: #### references)

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Documentation: The changes in this PR do not require documentation changes.

👍 this comment to confirm that this is correct.

[dheyay]

@orndorffgrant I agree, the current status would be more effective if not derived from the plan and can be set in the _generate_fix_plan function.

For the logic regarding FixStatus.SYSTEM_VULNERABLE_UNTIL_REBOOT, I think we can use the system.should_reboot() function along with the fixed packages to check for this?

[dheyay]

Updated @orndorffgrant, let me know if this works?

[lucasmoura]

@orndorffgrant I thinks this is a good idea

[dheyay]

Updated @orndorffgrant, will also update the documentation and create a PR for the same

[orndorffgrant]

Weird, my comment from my last review didn't post... I'll find it