feat: general k8s storage class

[mglotov]

Prerequisites

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• I am running the latest version
• I checked the documentation and found no answer
• I checked to make sure that this issue has not already been filed

Expected Behavior

There is one general storageclass for all PVC with next options:

• encrypted is true
• allowVolumeExpansion is true
• volumeBindingMode is WaitForFirstConsumer
• reclaim_policy is Retain

Current Behavior

We create separate k8s storageclass for elk stack (named ELK). However, we have several other STSs and deployments with PVC that don't use this storageclass and use default storageclass.
Default storageclass can't be expanded by default and it isn't encrypted