aether-roc-umbrella: adding LDAP auth for Grafana

[SeanCondon]

Unfortunately Organizations cannot be created through Helm Charts - only through API.

To use, login to http://localhost:8183/grafana as "admin"

get the admin password with kubectl get secret --namespace micro-onos aether-roc-umbrella-grafana -o jsonpath="{.data.admin-password}" | base64 --decode ; echo

Then create these 3 orgs with these IDs:

1. Main Org (will alread exist - can be renamed to Aether)
2. Acme Inc.
3. Starbucks

You will also have to deploy the dex-ldap-umbrella helm chart with the LDAP server

Then you can login as user alicea, daisyd, fredf etc with password.

This is just another step along the way