Support "content-encoding: gzip"

[omelhus]

Hey friends,

It would be cool if the graphql endpoints supported "content-encoding: gzip" (or brotli). This would enable vastly larger amounts of data to be imported through the API and working around the limits of 15mb in the gateway. When we import data the payloads have a great potential to be compressed.

This would also save Visma money, as the ingress bill would take less of a hit.

Wins all around.