Work to generate static python class code from pyswaggerclient

[u8sand]

The benefit of static code is better integration with IDEs i.e. w/ Jedi Autocompletion. In this PR, I introduce a new file static.py which uses jinja2 to render client.py.in from a SwaggerClient, the resulting object inherits from SwaggerClient but includes a set of generated dataclass and python typing decorators for models and actions.

Future direction:

• fully test this
• eliminate library dependence of generated client -- we could build requests with urllib.request
  • don't re-download swagger.json on class instantiation