feat(maps): Adding country maps: BI/ET/RW/TZ/UG (+updated NG)

[Yann-J]

SUMMARY

This adds admin boundary country maps for 5 countries in Africa (+ updates NG). All generated from the Jupyter notebook (also updated) - no tweaks required.

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

Updated country shapes:

TESTING INSTRUCTIONS

• Create Country map for any of the above country

ADDITIONAL INFORMATION

• Has associated issue:
• Required feature flags:
• 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

[codecov]

Codecov Report

Merging #18745 (03e76a7) into master (8b3e27d) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master   #18745   +/-   ##
=======================================
  Coverage   66.32%   66.32%           
=======================================
  Files        1620     1620           
  Lines       63061    63061           
  Branches     6368     6368           
=======================================
  Hits        41823    41823           
  Misses      19580    19580           
  Partials     1658     1658           

Flag	Coverage Δ
javascript	51.25% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...s/legacy-plugin-chart-country-map/src/countries.ts	100.00% <ø> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 8b3e27d...03e76a7. Read the comment docs.

[zhaoyongjie]

LGTM, Thanks for your contribution.

[villebro]

LGTM, restarted CI