add support for creating a project from a template

[axl1313]

What changed?

Intended usage:

from cleanlab_codex import Client

client = Client()
project = client.create_project_from_template(template_project_id, name, description)
...

Checklist

• Did you link the GitHub issue?
• Did you follow deployment steps or bump the version if needed?
• Did you add/update tests?
• What QA did you do?
  • Tested locally w airline agent