Change Harvest metrics to use a one for healthy

[cgrinds]

Raised by hashi825 in #262

Few notes from chat with team:

• The reason we map label values into a numeric value (0 or 1), is that you can't generate alerts in Grafana from labels, only numbers
• Originally 0 represented ok in Harvest because many statuses are enums that were mapped like this:

enum	int
ok	0
fail	1
missing	2
error	3
not_found	4

[Hardikl]

earlier:

cluster_status{cluster="C2_sti7-vsim-ucs569c_cluster", datacenter="DC-02", instance="localhost:12992", job="prometheus2", status="ok"}	0

now:

cluster_new_status{cluster="C2_sti7-vsim-ucs569c_cluster", datacenter="DC-02", instance="localhost:12992", job="prometheus2", status="ok"}	1

Node new status:

Cluster new subsystem:

Cluster new status:

Aggregate new status:

Shelf new status:

Volume new status:

normal/online/ok value mapped to 1 and rest non normal value mapped to 0.
With these detail, moving to status/done.