Additional LV tags for disaster recovery and improved usability

[laurivosandi]

Description

Could you please propagate additional metainformation to logical volume tags? This would be helpful in case of disaster recovery and also it would make the command line utilities more useful

# lvchange --addtag @namespace=monitoring /dev/ubuntu-vg/pvc-3a4700dc-3817-48db-a71f-92b1dd6a1d22 
  Logical volume ubuntu-vg/pvc-3a4700dc-3817-48db-a71f-92b1dd6a1d22 changed.
# lvchange --addtag @name=prometheus-prometheus-db-prometheus-prometheus-0 /dev/ubuntu-vg/pvc-3a4700dc-3817-48db-a71f-92b1dd6a1d22 
  Logical volume ubuntu-vg/pvc-3a4700dc-3817-48db-a71f-92b1dd6a1d22 changed.

# lvs -o lv_path,lv_tags
  Path                                                    LV Tags                                                                                                                                                                         
  /dev/ubuntu-vg/pvc-3a4700dc-3817-48db-a71f-92b1dd6a1d22 lv.metal-stack.io/csi-lvm-driver,name=prometheus-prometheus-db-prometheus-prometheus-0,namespace=monitoring

[majst01]

This could be indeed a useful addition, we would love to review a PR if you want to create one.
Otherwise it might take a while to get this implemented.