Add acronym to org insert

[DJensen94]

🗣 Description

Add the acronym to the CSV import file, allowing users to add acronyms to current orgs or when creating an org through the CSV import

💭 Motivation and context

This will allow us to add acronyms in our effort to eventually switch over to using the acronym as our unique constraint

🧪 Testing

Tested locally

✅ Pre-approval checklist

• [X] This PR has an informative and human-readable title.
• [X] Changes are limited to a single goal - eschew scope creep!
• [X] I have read the CONTRIBUTING document.
• [X] These code changes follow cisagov code standards.
• [X] All relevant repo and/or project documentation has been updated to reflect the changes in this PR.

✅ Pre-merge checklist

• [ ] Revert dependencies to default branches.
• [ ] Finalize version.

✅ Post-merge checklist

• [ ] Create a release.