Example to add extra_extension_modules

[JulianZhang]

Hello everyone

I want use PyOxidizer to build my Python application. I had pass the demo without any modules.

When I try to imports modules like requests, I can find example to do it.

I had read the blow document, but I don't know how to create ExtensionModules.

https://pyoxidizer.readthedocs.io/en/latest/pyembed_extension_modules.html

Any one can do me a favor show an example to add extra_extension_module such as requests?