Be able to load local image based on sha

[mitar]

What would you like to be added:

It seems it is not possible to reference an image with @sha suffix from the local machine to make sure exactly wanted image is loaded. So if you do kind load docker-image …@sha… it currently says "not found".

Why is this needed:

While debugging issues with your app inside a Docker image, it is useful to exactly know you are loading what you intended. Moreover, this assures that the image is loaded locally and not from a remote repository.

[BenTheElder]

Please see also #2394

[mitar]

This seems to be duplicate of #2394.