Added a bit of wip functionality for python side snippets (wip).

packages/python/pyproject.toml

packages/python/src/snip/api/__init__.py

packages/python/src/snip/api/schemas.py

packages/python/src/snip/api/snippets.py

packages/python/src/snip/api/token.py

packages/python/src/snip/snippets/base.py

packages/python/tests/test_api.py