bazel-contrib rules_oci

[pauldraper]

Are you aware of https://github.com/bazel-contrib/rules_oci ?

It has some of the same philosophies/improvements as this project, and some of the former maintainers of rules_docker.

If there are significant differences, it would be helpful to call them out, in addition to differences with rules_docker.

[alexeagle]

I've been back-channeling with @griffin about converging the two efforts since BazelCon. It's a good idea to have an issue for it, thanks.
My understanding is that this repo isn't under active development right now as @griffin isn't currently working on Bazel.