Provide a default terminology server, both downloadable and hosted, separate from the FHIR data server

[preston]

CQL Studio currently assumes that the FHIR data server also contains required terminology systems. This is probably not realistic or optimal, as running a fully loaded terminology server is often difficult to set up and is more common to use a shared read-only service instead.

Ideally we would be able to provide a preloaded terminology server by default, but due to licensing of the individual terminology services there are potential problems with effectively redistributing CodySystem data as part of the CQL Studio application stack.

For users that have independently acquired licenses to terminologies, it would still be the best user experience to provide a preloaded server (such as HAPI with SNOMED etc already loaded via CLI tools), but some research is needed on how to do this while being compliant with the individual licenses. If we are able to do this, we should also host a shared instance behind some sort of licensing wall or perhaps an attestation mechanism.

[preston]

Effectively resolved until/unless the terminology licensing situation changes.