RHDH Backstage Helm Chart for OpenShift

See charts/backstage/README.md.

Why this chart?

This is the "upstream" chart for RHDH, formerly the janus-idp chart.

To alleviate the confusion of having charts in this repo and artifacthub, AND the official charts in the Openshift Helm Charts repo @ https://charts.openshift.io/ we intend to merge this content into the downstream chart via this issue: https://issues.redhat.com/browse/RHIDP-1477

Contributing and reporting issues

To report issues against this chart, please use JIRA (not GH issues): https://issues.redhat.com/browse/RHIDP