[Task] Add authentication and authorization

[jiekang]

Requests should require authentication and authorization to proceed.

[tthvo]

Might be useful: https://grafana.com/docs/grafana/latest/administration/provisioning/ to set up Grafana.

[andrewazores]

Worth noting that this still hasn't been implemented because the Cryostat use-case only deploys this as a container within the Cryostat Pod, and the container's ports are not exposed by a Service to any traffic from outside the Pod. ie only Cryostat and other related containers can talk to the jfr-datasource instance over localhost. Authz would still be excellent to add but the deployments are pretty heavily isolated/firewalled off anyway.