Add functions to return Registries paths
Add functions to return Registries paths

Tools can use them to help users debug

We are seeing lots of issues with people taking podman and buildah and just
building them and installing them without greating registries.conf file.

They end up doing

buildah from fedora
or
podman from fedora

And we report that fedora does not exist.

I would like to make podman/buildah smarter so that they could state something like
podman from fedora
fedora does not exist.  Your /etc/containers/registries.conf and /etc/contaienrs/registries.d directory are empty.

Signed-off-by: Daniel J Walsh <7800de746fd39599bc46177380ea6aede7e31e16@redhat.com>

containers/image,containers/image