Cloud optimized GeoTiffs

[stuartlynn]

I am looking for ways to work with Cloud Optimized GeoTiffs in rust. I don't think this library currently supports them, and I don't think there is a good crate just now that does.

Would there be interest in adding that functionality to this crate? I would be happy to try to do a first pass at an implementation if that's something of interest.

[dominikbucher]

In general probably yes, but note that this library does not implement the full GeoTiff specification, so it might not be straightforward to add cloud optimized GeoTiffs on top, at least not without expanding the base layer.

A good starting point might be to complete #1 so that it can be merged.