Allow options when building and using an image instead of a Dockerfile

[Roemer]

There is a build.options property that allows adding additional command line arguments to the Docker command while building. For example:

{
    "build": {
        "dockerfile": "Dockerfile",
        "options": [
            "--add-host=host.docker.internal:host-gateway"
        ]
    },
    "features": {
        ...
    }
}

This works great. But often the base is just an image and features are just installed while building. So there would be the following:

{
    "image": "debian:11",
    "build": {
        "options": [
            "--add-host=host.docker.internal:host-gateway"
        ]
    },
    "features": {
        ...
    }
}

This unfortunately does not work as image and build are not allowed together. It would be great if either the optionswould work withimageor therunArgs` or a separate property would exist to pass additional command line options.