Initial python SDK

[cleverguy25]

This depends on PR 271

Like the last one, this is a large PR with lots of generated files so here are the important parts:

This is a large PR with lots of generated files, so here is a walkthrough. Basically each language SDK has templates, those templates are used to generate a "raw" API, and there is a handcrafted but light wrapper to "cleanup" the result or provide convenience methods.

• ./.vscode/
  • settings to run/debug unit tests in vscode
• ./Makefile
  • add code generation commands
• ./sdk/templates/python
  • downloaded templates using `openapi-generator-cli author template -g python -o -./sdk/templates/python
    • This is so we have control but also for go and python we need to add yaml support and some files to support a "raw" client
• ./sdk/python/.openapi-generator-ignore
  • suppresses generation of superfluous files
• ./sdk/python/esc/esc_client.py
  • handcrafted wrapper over the raw API client
• ./sdk/python/test/test_esc_api.py
  • handcrafted E2E tests
• ./sdk/python
  • rest of generated code