Gather ethnicity from datasets

[Moohan]

• [ ] Check which datasets have Ethnicity in them.
• [ ] Update BOXI extracts to bring out Ethnicity.
• [ ] Pull ethnicity into existing code.
• [ ] Check dataset quality and completeness.
• [ ] Code to incorporate Ethnicity in SLFs

[github-actions[bot]]

This issue is stale because it has been open approximately 5 months with no activity.

[github-actions[bot]]

This issue is stale because it has been open approximately 5 months with no activity.