Configure OpenID for kibana

[caspiano]

Is your feature request related to a problem? Please describe.

Kibana is currently accessed by a basic auth prompt. This step could be avoided.

Describe the solution you'd like

Using the OpenID Connect feature of the Open Distro for Elasticsearch.

Describe alternatives you've considered

Basic authentication

Additional Context

https://opendistro.github.io/for-elasticsearch-docs/docs/security/configuration/openid-connect/