feat(chart): added the ability to specify K8s extra objects

[pierluigilenoci]

What type of PR is this?

/kind feature

What this PR does / why we need it:

Add the ability to specify K8s extra objects

Which issue(s) this PR fixes:

Fixes #5633

Special notes for your reviewer:

Does this PR introduce a user-facing change?

Added the ability to specify K8s extra objects.

Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: pierluigilenoci
Once this PR has been reviewed and has the lgtm label, please assign gjtempleton for approval. For more information see the Kubernetes Code Review Process.

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• charts/OWNERS

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[k8s-ci-robot]

Hi @pierluigilenoci. Thanks for your PR.

I'm waiting for a kubernetes member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[pierluigilenoci]

@gjtempleton, could you please take a look?

[pierluigilenoci]

@mwielgus, please take a look.