Create Helm Chart from Static Manifests

[hswong3i]

What type of PR is this?
/kind feature

What this PR does / why we need it:
This PR convert our static deployment manifests from deploy/kubernetes-latest/* into Helm Charts under charts/*, by running a convert script under deploy/util/chart-releaser.sh.

Moreover, it handle the chart release with branch gh-pages, by integrate with https://github.com/helm/chart-releaser-action.

The sample helm repo could find from https://alvistack.github.io/kubernetes-csi-csi-driver-host-path/index.yaml, by:

helm repo add csi-driver-host-path https://alvistack.github.io/kubernetes-csi-csi-driver-host-path/
helm repo update
helm search repo csi-driver-host-path

Before each stable tag release, maintainers only required to:

1. Run the ./deploy/kubernetes-latest/chart-releaser.sh and update templates under charts/*/templates/*
2. Double confirm charts/*/values.yml with correct values, e.g. image tags
3. git add --all --force charts/* && git commit

Create Helm Chart from Static Manifests

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: hswong3i
Once this PR has been reviewed and has the lgtm label, please assign msau42 for approval. For more information see the Code Review Process.

The full list of commands accepted by this bot can be found here.

Needs approval from an approver in each of these files:

• OWNERS

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[k8s-ci-robot]

Hi @hswong3i. Thanks for your PR.

I'm waiting for a kubernetes-csi 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.

I understand the commands that are listed here.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.