Extra objects manifests

[fboula]

Enable the possibility to add some extra manifest to the chart by passing a yaml list of k8s manifests.

This would allow to create any objects you may require to make your keda install to work. This is extremely useful and easy to maintain, an example can be seen in argo workflow chart

Use-Case

• Create ClusterTriggerAuthentication
• Create secrets required for a ClusterTriggerAuthentication
• Any other resources that would make sense to deploy along the keda chart

If this gets approved, I can work on the pull-request to implement it.

[mkilchhofer]

It is really not good practice to deploy CRDs and resources of that CRDs (= an instance) inside one helm release.

See the comment I made in your PR:

• feat: Support extra kubernetes manifests #395 (comment)