Cluster Peering exported service wildcard

#### Feature Description

When exporting a service for peering, we should support wildcards. If cluster wants to export multiple services, it can be a pain to export each service. If a group is changing services constantly then maintaining the peering configs become a burden.

The issue does not name files, tests, or entry points. Start by locating the cluster peering service-export configuration and its current service matching logic; then determine how wildcard patterns should select multiple services. Done means peering exports can use a wildcard without listing each service individually and existing explicit exports continue to work.

Written by the indexing model from the issue text.