Add test for the local-dev CLI

[zeiler]

This CLI https://github.com/Clarifai/clarifai-python/blob/master/clarifai/cli/model.py#L253 for local_dev was added in this PR https://github.com/Clarifai/clarifai-python/pull/568 to make it much easier to bootstrap local dev runners for the first time.

Can you added mocked unit tests for that functionality into tests/cli/test_compute_orchestration.py

Additionally, can you add unit tests for clarifai/utils/config.py to test the variety of config settings possible within the config context?