Nsfs : Default resources on hci odf

[aspandey]

NSFS: Create default resource objects on Fusion HCI

ODF MCG on Fusion HCI with Spectrum Scale CNSA should
configure the default BucketClass, Namespacestore and
default PVC to use NSFS.

To set up NSFS on kubernetes, we need to create pvc
and namespacestore which can be used to create nsfs
bucket class. These nsfs buckets are used to create
a user bucket by s3 client.