Absent metric nic_state used in dashboards

[rahulguptajss]

Several dashboards like Network Dashboard, Network Detail dashboard, nvme fc dashboard are using nic_state which is
not a metric exposed by harvest. Due to this, Status field is not available in these dahsboards.
We do have state label in nic_labels and a metric as nic_status.
We should be using value_to_num for mapping status https://github.com/NetApp/harvest/blob/077ffc71c5d30e9f08112402633fe4b79734b629/cmd/poller/plugin/README.md#value_to_num

[rahulguptajss]

not in 21.08.0. This needs testing for next release.

[Hardikl]

Build used for last release: harvest-21.08.0-6.x86_64.rpm
Build used to test latest: harvest-21.10.2700-nightly.x86_64.rpm

1. Network dashboard:

previous:

now:

2. Network detail:

previous:

now:

3. Nvme fc :

previous:

now:

4. metrics:

previous:
[root@scspb2506824001 28_10]# curl -s 'http://localhost:12992/metrics' |grep nic_status | wc -l
28
[root@scspb2506824001 28_10]# curl -s 'http://localhost:12992/metrics' |grep nic_new_status | wc -l
0

now:
[root@scspb2506824001 harvest]# curl -s 'http://localhost:12992/metrics' | grep nic_status | wc -l
28
[root@scspb2506824001 harvest]# curl -s 'http://localhost:12992/metrics' | grep nic_new_status | wc -l
28
[root@scspb2506824001 harvest]#

After the upgrade, folder structure looks like this: