Create a new KojiRepo custom resource, this resource should deploy an http server, like apache, to serve rpm repositories from the shared volume.

This issue is also about removing the repository bits from the KojiHub resource as they should be independent components.

Suggested resource schema:

apiVersion: buildsys.apps.fedoraproject.org/v1alpha1
kind: KojiRepo
metadata:
  name: default
  annotations:
    buildsys.apps.fedoraproject.org/hub: sample/osdk-test
  spec:
    image: quay.io/fedora-kube-sig/koji-web:latest
    replicas: 1
    hostname: kojipkgs.fedoraproject.org

Secrets, username, and etc should use the resource name and namespace where applicable.