Add StorageClass support to Helm chart

[invidian]

Is your feature request related to a problem? Please describe.
It would be valuable to be able to create a StorageClass to consume this driver together with Helm chart, which is used for deployment.

Describe the solution you'd like in detail
Helm chart should have values for enabling storage class management and enabling it as a default storage class. I suppose customizations can be implemented on demand.

[fejta-bot]

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Mark the issue as fresh with /remove-lifecycle stale.
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/lifecycle stale

[invidian]

/remove-lifecycle stale

ehhh, there is even PR opened for this...

[krmichel]

@ayberk The tied PR was closed in favor of PR #697 which has been merged so I think this should be closed.

[ayberk]

/close

[k8s-ci-robot]

@ayberk: Closing this issue.

In response to this:

/close

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