feat(country-map): add map for France with all overseas territories

[tarraschk]

SUMMARY

This PR adds a GeoJSON map for France with all overseas territories in the "Country maps" charts.

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

TESTING INSTRUCTIONS

1. Create a new chart
2. Choose dataset "birth_france_by_region" (built-in)
3. Choose a "Country Map" chart type
4. In Country option choose "France (with overseas)", DEPT_ID for ISO 3166-2 code, and avg__204 for Metric.
5. Click on Create Chart

ADDITIONAL INFORMATION

• Has associated issue: Add a map of France with overseas (ready to make the PR if approved) #30994
• Required feature flags: viz:charts:map
• Changes UI
• Includes DB Migration (follow approval process in SIP-59)
  • Migration is atomic, supports rollback & is backwards-compatible
  • Confirm DB migration upgrade and downgrade tested
  • Runtime estimates and downtime expectations provided
• Introduces new feature or API
• Removes existing feature or API

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[rusackas]

Hi! I appreciate the change, but the change needs to be made in the Jupyter notebook. I hope this helps :)

[tarraschk]

Hi! I appreciate the change, but the change needs to be made in the Jupyter notebook. I hope this helps :)

Hello @rusackas thanks for your feedback.

The GeoJSON has been made by hand in order to simplify some geometries (e.g. French Polynesia has a lot of islands, but I only kept the main one which is Tahiti).
Thus, can I upload it on a private repo, and then sync it with Jupyter like it has been done for India here?

[tarraschk]

@rusackas I adapted my PR with your recommendations.

1. I created a geojson and hosted it on my own repo.
2. I updated the Jupyter Notebook project so that it takes my geojson file, based on the same approach as the one used for Philippines.

I added a step to plot all countries from the "altmaps" in order to preview all maps that are a little more customized. We can see the new France Overseas results right here :).