Get download stats from cloudfalre

[jeroen]

We may use zaraz to keep track of downloads, even if most responses are cached: https://developers.cloudflare.com/zaraz/get-started/

[jeroen]

I'm not sure Zaraz tracks non-browser events.

Maybe we should implement it ourselves: https://developers.cloudflare.com/analytics/analytics-engine/get-started/

[roaldarbol]

This would be super! Especially if it can be tied to a badge like the CRAN downloads badges; it's a good way to show that the package is being used, making it easier to get resources to keep developing and maintaining them. :-)