Support for showing the same level of information and details on images as shown by `buildx imagetools inspect` when using the containerd image store

[segevfiner]

Description

buildx imagetools inspect supports showing additional info on a Docker image such as provenance and SBOM attestations. But that command only works against images pushed to a registry, not against local images.

In the past such manifests and multi platform images were not supported by the local image store, but Docker has such moved to the containerd image store which does support all this things, and they will be pushed along with the image, but there doesn't appear to be a CLI to query it directly.

I would love for docker inspect or build imagetools inspect to be able to query against the local containerd image store.