Add deployment of example-get-started-experiments model

[dberenbaum]

Add a CI job that uses model registry to deploy the example-get-started-experiments model. Nice to have would be using Sagemaker for deployment.

[daavoo]

Added a simple deployment pattern in #229 . It just creates a new endpoint whenever a new version is registered.

The stages in the registry are not handled at all, I preferred to discuss what would make sense to simulate a "real" use case.

A proposal I have is to use a pattern like the following:

• MR: Registering version
  Sagemaker: Creates a model in Sagemaker but does not create an endpoint.

• MR: Assigning stage.
  Sagemaker: Creates and links endpoint to the model created when registering a version.
  Depending on the stage, use a different endpoint config (i.e. larger instance type for prod, smaller for dev)

• MR: Updating stage.

I think this should remove the endpoint from the previous stage and create a new one.

[dberenbaum]

Fixed in #233