Add inventory-item-has-software-version constraint

[Gabeblis]

Committer Notes

Purpose

This PR aims to add the inventory-item-has-software-version constraint which ensures that every inventory items has a "os-version" or "software-version"

Changes

Added constraint:

• inventory-item-has-software-version

Added valid/invalid test content:

• ssp-inventory-item-has-software-version-INVALID.xml
• Edited fedramp-ssp-example.oscal.xml to align with constraint

Added yaml files for testing:

• Pass/fail yaml tests added for each of the above constraints.

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• If applicable, does this PR reference the issue it addresses and explain how it addresses the issue?

By submitting a pull request, you are agreeing to provide this contribution under the CC0 1.0 Universal public domain dedication.

[kyhu65867]

:)

[Gabeblis]

@Rene2mt As of right now, upstream allowed-values don't allow for a 'software-version' prop in a component. Tests fail when I try to add the example of an inventory-item not having the prop, but the linked component does have it.

[wandmagic]

needs a rebase, but looks good to me

[Rene2mt]

@Rene2mt As of right now, upstream allowed-values don't allow for a 'software-version' prop in a component. Tests fail when I try to add the example of an inventory-item not having the prop, but the linked component does have it.

@Gabeblis this is similar to 1038 where the prop we need isnot supported by upstream OSCAL. We're discussing several options - see #1038 (comment)