Create manifests for integration w/ OLM

[JohnStrunk]

Create the CSV and other metadata necessary to have gluster-subvol-operator deployed and upgraded by OLM.

Starting point: https://github.com/operator-framework/operator-lifecycle-manager/blob/master/Documentation/design/building-your-csv.md

Issues to consider:

• The flex DaemonSet needs access to hostPath
• Both the recycler and flex need to run w/ SCC anyuid

[JohnStrunk]

This may be helpful: https://docs.okd.io/latest/architecture/additional_concepts/authorization.html#rbac-to-scc