Add Snapshot Create & Deployment to Onboarding

[Cahllagerfeld]

[htahir1]

@schustmi whenever we implement this , we;d need your help to implement the backend. I would like the onboarding to now include steps that follow this pattern: https://docs.zenml.io/getting-started/hello-world

Basically the pipeline should be:

@step
def basic_step() -> str:
    """A simple step that returns a greeting message."""
    return "Hello World!"


@pipeline
def basic_pipeline() -> str:
    """A simple pipeline with just one step."""
    greeting = basic_step()
    return greeting


if __name__ == "__main__":
    basic_pipeline()```


Then someone runs the pipeline: `python run.py`

Then they create a snapshot: `zenml pipeline snapshot create run.basic_pipeline --name my_snapshot` 

Then they deploy it:

`zenml pipeline snapshot deploy my_snapshot --deployment my_deployment`

cc @bcdurak @Cahllagerfeld