Python repo to provide a python lib and client to help with scalability tests

[viniarck]

Currently, each developer has their own scripts when trying to stress test certain resources. At some point we should create a new repo, expose a python lib to CRUD napps and core resources like EVC, and then it can be used from another Python application or as a cli. We should also consider generating the openapi clients if a good async client can be generated.

In the future this can be used by the stress test repo we'll have too #446. Here, the focus is to provide the building blocks to CRUD and CRUD concurrently.