Importer/Generator - investigate support/workaround for x-ms-client-flatten tag behaviour #4918
Description
Certain API objects seem to be flattened in the API response (e.g. networkingConfiguration in the app service environment body), however the generated SDK doesn't flatten this in the generated struct, causing the NetworkingConfiguration struct to be empty after unmarshalling the JSON body.
Investigate whether the behaviour is consistent for objects with an x-ms-client-flatten tag in the API spec, if it is, introduce steps to modify the generated structs so we can properly retrieve existing configuration from the API.