Add NexentaEdge NFS plugin to the list of production drivers.

[sabbot]

Greetings,

We would like to add our CSI plugin for NexentaEdge File,Block and Object storage to the list of production drivers.

The driver repo is here: https://github.com/Nexenta/nexentaedge-csi-driver
Name: NexentaEdge https://nexentaedge.io/docs/kubernetes-csi.html
Status: v0.2.0
Description: A Container Storage Interface (CSI) Plugin for NexentaEdge Scale-Out, Multi-Cloud S3/NFS storage services

Thanks

[saad-ali]

Please go ahead and create a pull request in this repo to add the driver yourself. Example: #90