Autocompletion for model properties

[JPercival]

As a CQL author, when writing CQL that references some Model, I want the editor to suggest a list of properties. For example,

     [Observation] O where O.   //suggest properties of Observation here

[JPercival]

In CQL the Model information is provided by a ModelInfo. The CQL compiler loads these via the ModelManager. You'd check to see if you were a context of accessing a Model's properties, then auto-populate a list based on the ModelInfo

[JPercival]

https://microsoft.github.io/language-server-protocol/specifications/lsp/3.17/specification/#textDocument_completion