Add sampleconfig endpoint

app/main.py

@@ -73,6 +73,11 @@ async def get_model_copyright(model_id: str, response:Response):
     requested_model = get_model_instance(model_id)
     return requested_model.copyright if requested_model is not None else _result_or_404(None, model_id, response)
 
+@app.get("/models/{model_id}/sampleconfig/", response_class=PlainTextResponse, name="Get a sample configuration")
+async def get_model_sampleconfig(model_id: str, response:Response):
+    requested_model = get_model_instance(model_id)
+    return requested_model.sample_config if requested_model is not None else _result_or_404(None, model_id, response)
+
 @app.get("/models/{model_id}/warningstatusinterpretation/{language}/", response_class=PlainTextResponse, name="How to interpret the warning status (red-yellow-green, what does it mean?) in the specified language (<a href='http://www.loc.gov/standards/iso639-2/php/English_list.php'>ISO-639-2</a>)")
 async def get_model_warning_status_interpretation(model_id: str, language: str, response:Response):
     return _result_or_404(_get_model_warning_status_interpretation(model_id, language), model_id, response)