Adding driver + syncer metrics to Prometheus.

The driver reports regular go metrics (process_open_fds, go_threads, ...), the only driver specific thing is `vsphere_csi_info`:

# HELP vsphere_csi_info CSI Info
# TYPE vsphere_csi_info gauge
vsphere_csi_info{version="09175db5"} 1

The syncer is mostly the same, it has vsphere_syncer_info:

# HELP vsphere_syncer_info Syncer Info
# TYPE vsphere_syncer_info gauge
vsphere_syncer_info{version="09175db5"} 1


(to be honest, the metrics don't look very useful)

Verified passed on 4.11.0-0.nightly-2022-04-23-153426

The following metrics are be albe to reported from Prometheus.

    "vsphere_csi_driver_error",
    "vsphere_csi_info",
    "vsphere_csi_volume_ops_histogram_bucket",
    "vsphere_csi_volume_ops_histogram_count",
    "vsphere_csi_volume_ops_histogram_sum",

    "vsphere_full_sync_ops_histogram_bucket",
    "vsphere_full_sync_ops_histogram_count",
    "vsphere_full_sync_ops_histogram_sum",
    "vsphere_sync_errors",
    "vsphere_syncer_info",

Move status to "VERIFIED"

On an upgrade cluser (from 4.10.0-0.nightly-2022-04-23-095048 to 4.11.0-0.nightly-2022-04-23-153426), only vsphere_csi_driver_error and vsphere_sync_errors presnet.
Will double check.

Move status to "ON_QA"

This should be fixed by library-go bump in https://github.com/openshift/vmware-vsphere-csi-driver-operator/pull/85

https://github.com/openshift/vmware-vsphere-csi-driver-operator/pull/85 got merged.

Verified pass on upgrade case:


    "vsphere_cns_volume_ops_histogram_bucket",
    "vsphere_cns_volume_ops_histogram_count",
    "vsphere_cns_volume_ops_histogram_sum",
    "vsphere_csi_info",

    "vsphere_full_sync_ops_histogram_bucket",
    "vsphere_full_sync_ops_histogram_count",
    "vsphere_full_sync_ops_histogram_sum",
    "vsphere_sync_errors",
    "vsphere_syncer_info",


$ oc -n openshift-cluster-csi-drivers get svc
NAME                                           TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)                                           AGE
vmware-vsphere-csi-driver-controller-metrics   ClusterIP   172.30.38.193    <none>        442/TCP,443/TCP,444/TCP,445/TCP,446/TCP,447/TCP   7h48m

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (Important: OpenShift Container Platform 4.11.0 bug fix and security update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2022:5069