feat: Adds initial docstring & comments to translations.py

[darigovresearch]

Would resolve Issue #75

Description

Adds docstring & inline comments to translations.py

Affected Dependencies

None

How has this been tested?

• Viewed via the GitHub in the browser

Checklist

• [x] I have followed the Contribution Guidelines and Code of Conduct
• [x] I have commented my code following the OpenMined Styleguide
• [x] I have labeled this PR with the relevant Type labels
• [x] My changes are covered by tests

[darigovresearch]

@Nolski thanks for the guidance everything should now be in order!