[Request]: Support disk images for volumes

### Feature or enhancement request details

Maybe this exists, but if it does I could not figure out how to do it 😀.

I have a disk image file that I want to mount directly in the container. In this case, the disk image is an ASIF image.

I tried something like:

```
containers run --volume /my/cool/image/asif.img:/mounted_image
```

But that errors out saying the sharing device is not a directory.

Ideally this would handle a password protected image as well by asking for each image's password over the TTY (like `diskutil image attach` does).

I _think_ some support for this in `containerization` already: https://github.com/apple/containerization/blob/cb3493b507a19fdc8faa8f3f5bb7490a3d422e3a/Sources/Containerization/Mount.swift#L136-L141

But I can't figure out how to use a disk image as a volume directly (or maybe I am misunderstanding what the containerization mount configuration does).

I can work around this by mounting the image myself by using `diskutil image attach -b --mountPoint etc etc` but it would be great if `container` could do this for me.

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