Use quay.io rather than docker.io for prometheus, grafana and oauth-proxy (openshift3) (#5232)
Use quay.io rather than docker.io for prometheus, grafana and oauth-proxy (openshift3) (#5232)

Avoids the Docker download limits.

For CONSOLE_PROXY_OPENSHIFT3_IMAGE, openshift/oauth-proxy:latest was pushed to quay.io as quay.io/enmasse/openshift3-oauth-proxy:v2.3.0
Other images were diff'd to ensure parity.
EnMasseProject/enmasse,EnMasseProject/enmasse,EnMasseProject/enmasse,EnMasseProject/enmasse,EnMasseProject/enmasse,EnMasseProject/enmasse,EnMasseProject/enmasse