Add support for podman artifacts into Ramalama

[rhatdan]

trafficstars

• [ ] Support pulling AI Models stored as Artifacts.
• [ ] ramalama convert --type artifact MODEL quay.io/REPO/NAME
• [ ] Support mounting Artifact based AI Models into containers
• [ ] Support defining quadlets that mount Artifact into containers.
• [ ] Support pulling partial artifacts so I could pull the tensors without pulling the model