Add inventory-item-has-hardware-model Constraint

[Gabeblis]

Committer Notes

Purpose

This PR aims to add the inventory-item-has-hardware-model constraint which ensures that hardware model information is provided for hardware components / inventory items.

Changes

Added constraint:

• inventory-item-has-hardware-model

Added valid/invalid test content:

• ssp-inventory-item-has-hardware-model-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.

All Submissions:

• Have you selected the correct base branch per Contributing guidance?
• Have you set "Allow edits and access to secrets by maintainers"?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?
• Have you squashed any non-relevant commits and commit messages? [instructions]
• Have you added an explanation of what your changes do and why you'd like us to include them?
• If applicable, have all FedRAMP Documents Related to OSCAL Adoption affected by the changes in this issue have been updated.?
• 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.

[Rene2mt]

Hi @Gabeblis. Sorry I didn't mention the example ssp changes earlier.

Also, per discussion at stand up, a hardware inventory item can be specified:

1. by adding an "asset-type" prop with "hardware" value to the inventory-item
2. by having the inventory-item reference (via implemented-component\component-uuid) a component that has a "asset-type" prop with value of "hardware"
3. by having the inventory-item reference (via implemented-component\component-uuid) a component of type "hardware"

Please account for that 3rd case in the constraint and it should be good to go. thx

[Gabeblis]

@Rene2mt I just noticed the extra hardware-model props as well. Those have been removed 👍

[Rene2mt]

Nice work! Looks good.