title: Camel case code generation with swagger
body: <p>I am trying to generate python client from a swagger yaml file. It works fine, except that the response models are all snake cased(words sep. by underscores) instead of camel cased. I provided the camel cased versions like this:</p>
  
  <p><code>definitions:
      serviceResponse:
        type: object
        properties:
          serviceResponseInternal: 
             type: object</code> </p>
  
  <p>The generated code has a ServiceResponse object which has an internal field service_response_internal. I would like it to respect the convention and just have serviceResponseInternal instead of underscored seperated names. How do I achieve this? </p>