Add Data Access Control

[urseberry]

What does this PR do? What is the motivation?

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Additional notes

[github-actions]

Preview links (active after the build_preview check completes)

New or renamed files

• https://docs-staging.datadoghq.com/uchen/data-access/account_management/rbac/data_access

[aliciascott]

Hi @urseberry this looks good! I have some suggestions mostly for wording and flow and trying to be consistent with capitalizing or not capitalizing Restricted Dataset. Also I think the Supported and not supported examples could benefit from a little bit of re-formatting, but feel free to keep it as is!

[urseberry]

I'm doing the changes in batches to make them easier to reason about. Will come back later to address the rest of the feedback.

[urseberry]

Alicia, this is ready for your re-review. Some things to note:

• I accepted all your wording suggestions.
• I decided to make Restricted Dataset capitalized throughout. Thanks for pointing out the inconsistency!
• Data Access Control will be added to the preview signup site soon.
• The in-app link to Data Access Control requires the org_management permission, which I don't have in any org, so I can't test it. I assume the PM gave me the right link. Do you have org_management anywhere?
• I adjusted your formatting for the examples a bit. I also removed the bolding from the field names, because I thought it made them hard to read. See attached screenshot. Thanks for the suggestion, though. I think the new version is clearer than what I originally had.