New OCI artifact type "docker model runner"

There's two main model as OCI artefact types outside of RamaLama, Ollama and Docker Model Runner, For Ollama we did the OCI pulling in python3 with one of the container image layers being the .gguf file. Part of this issue is to figure out what dockers format.

For Ollama we implemented the pulling of that format in python.

One of the questions is do we also pull the docker format in python3? Or do we explore pulling these formats via skopeo/podman?