Update pip compatibility shims
Update pip compatibility shims

- Point at moved `cmdoptions` and `base_command`
- Update import script for better organization and laziness

Signed-off-by: Dan Ryan <2591e5f46f28d303f9dc027d475a5c60d8dea17a@danryan.co>

suutari/prequ,suutari-ai/prequ,suutari/prequ