feat: add cosi bucket kit helm chart

[takirala]

What type of PR is this?

Add a utility helm chart that:

• has an implicit dependency against cosi CRDs (it is users reponsibility to ensure cosi CRDs are already deployed).
• can be deployed multiple times (e.g.: by multiple applications)
• can create 0 or more instances for each of cosi CRs such as
  • BucketClass
  • BucketAccessClass
  • BucketClaim
  • BucketAccess
• can create 0 or more for compatible cosi drivers. only ceph is supported for now. we can add support for azure and nutanix drivers in future if we desire. I am open to discussing if its worth it to move this driver out of this helm chart for seperation of concerns if you feel strongly about it.

What this PR does/ why we need it:

Which issue(s) this PR fixes:

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

Checklist

• If a chart is changed, the chart version is correctly incremented.
• The commit message explains the changes and why are needed.
• The code builds and passes lint/style checks locally.
• The relevant subset of integration tests pass locally.
• The core changes are covered by tests.
• The documentation is updated where needed.