Can split the generated Swagger Spec into multiple smaller files #3406
Description
Currently, the AutoRest emitter generates a single Swagger Spec JSON file regardless of how many .tsp files exist. This becomes problematic when a service definition is highly complex, the resulting file can exceed 10,000 lines, making it difficult to review and potentially causing issues with GitHub handling such large files.
To improve the experience for reviewing and other use cases, we should introduce a mechanism to split the generated Swagger Spec into multiple smaller files.
This approach would also help meet documentation site requirements, where multiple files are needed to organize the structure effectively.