Add various Helm charts POCs

[kunal-511]

Pull Request Template for Kubeflow Manifests

✏️ Summary of Changes

Introduces Helm chart structure for Kubeflow components starting with spark-operator, including umbrella chart pattern and component-specific charts. Implements comprehensive verification system to ensure Helm produces functionally equivalent manifests to existing Kustomize approach with CI/CD validation. Created experimental/helm/kubeflow/ umbrella chart with Chart.yaml, values.yaml Created experimental/helm/charts/spark-operator/ component chart referencing upstream v2.2.0

🐛 Related Issues

Deploying Kubeflow with helm

✅ Contributor Checklist

• [ ] I have tested these changes with kustomize. See Installation Prerequisites.
• [x] All commits are signed-off to satisfy the DCO check.
• [ ] I have considered adding my company to the adopters page to support Kubeflow and help the community, since I expect help from the community for my issue (see 1. and 2.).

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[kunal-511]

Please can you check is this the right way now @juliusvonkohout

[kunal-511]

@juliusvonkohout do i make the sync helm scripts to be same as the kustomize one which creates a seperate pr for that or include them directly here ?

[juliusvonkohout]

CC @kromanow94 @chasecadet @varodrig

[kunal-511]

Rebase to master

[juliusvonkohout]

@kunal-511 @andreyvelich what is blocking the PR now ?

[juliusvonkohout]

CC @chasecadet @varodrig

[github-actions[bot]]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[juliusvonkohout]

@kunal-511 please rebase and get this read to merge.