Could polars help speed up ampycloud even more ?

[fpavogt]

Describe the change
There's a new DataFrame package called polars.

This looks like it could provide a significant speed gain over pandas, currently used by ampycloud. Speed is not an issue today with ampycloud, but any gain would be good to take.

@loforest: making an upgrade from pandas to polars would require some deep surgery ... but it could also be the perfect excuse to learn the code in all the details, if someone wanted to take ownership when I'll move to the great beyond (MCH).

I note that there may be good reasons why polars cannot work with ampycloud, but I have not checked in details yet.

[regDaniel]

I'd be open to give this a try. I've looked into polars (albeit directly in Rust) and think it brings some significant advantages over Pandas.