Move project types into _types/project.py

[pcattori]

↪️ Pull Request

Relates to #400

✔️ PR Todo

• [ ] Added/updated testing for this change
• [x] Included links to related issues/PRs
• [ ] Update relevant docs + docstrings
• [ ] Update the CHANGELOG under the current -dev version:
  • Add changelog entries under any that apply: BREAKING CHANGES, NEW FEATURES, BUG FIXES.
  • Changelog entry format: [#<issue number>](<link to issue>) <change description>