Added Label Properties to 800-53 Rev 4 Groups

[brian-ruf-ezd]

Committer Notes

Added label properties to groups in NIST SP 800-53 r4, so that tools that honor the label property will have data to use.

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[iMichaela]

@brian-comply0 - Thank you for splitting the proposed changes into separate PRs.
PLEASE NOTE- The PR needs to be submitted against develop or a feature-[issue] branch and not main branch.
I am not convinced 800-53 Rev4 needs such enhancement not justified by the original data set. I am waiting on the community to weigh in and provide their perspective.