feat(rest-plugin): delete volume by uuid

[tiagolobocastro]

Add delete volume subcommand to the rest-plugin utility. The K8s plugin utility will add additional checks, such as ensuring the equivalent PV is already deleted.

[tiagolobocastro]

First step of openebs/mayastor#1835

[Abhinandan-Purkait]

Shouldn't the csi controller garbage collector extend this feature rather than a manual cli command, looks risky to me, how do you ensure we don't end up deleting a wrong volume. Maybe add a double confirmation?

[tiagolobocastro]

Shouldn't the csi controller garbage collector extend this feature rather than a manual cli command, looks risky to me, how do you ensure we don't end up deleting a wrong volume. Maybe add a double confirmation?

What do you mean by "extend this feature"? The whole point is that it's not safe to garbage collect these volumes, it should be a manual procedure.
The kubectl plugin will double check and ensure that the deletion volume does not have an equivalent PV.

By double confirmation, you mean like: "type Y or YES" to confirm?