[DATA] add Constrained population data (2020) from world pop

[JinIgarashi]

Issue Description

world pop has both constrained and unconstrained population data. For constrained, they don't have global mosaic data. we need to combine all countrys' data into a mosaic dataset.

I added constrained data only for Libya (https://geohub.data.undp.org/data/03a9829325df733d597b7f253ba158fd) for testing.

maybe this API can be used.

https://www.worldpop.org/sdi/introapi/

References

Data is available from

https://hub.worldpop.org/geodata/listing?id=78

Dataset ID

No response

Screenshots

No response