Build multi-arch images if possible, including arm64

[ezelenka]

Please build multi-arch images if possible, including at least arm64 platform.

[ukclivecox]

Are you able to provide a PR for this or an outline of steps?

[ezelenka]

@cliveseldon I found the code here: https://github.com/SeldonIO/seldon-core/tree/master/core-builder which uses docker directly and potentially some precompiled packages as well. This potentially can be done using buildx - https://docs.docker.com/buildx/working-with-buildx/ , or podman - https://podman.io/ and feels like fair amount of work. I don't have PR for this work. Why I'm saying "if possible", is because I'm not sure if there are pre-build dependencies for this image which are arch specific or not.

[ukclivecox]

Not for now - closing