Add Juniper alarm monitoring to hardware health status

Juniper devices have red and yellow alarms that indicate various conditions (ie booted from backup partition) and both yellow and red alarms can be monitored via snmp. I currently have custom pollers doing the work for me, and get alerted when a red or yellow alarm happens. But it would be good to have that integrated into NPM's hardware health monitoring for Juniper devices.

For those interested in doing this through a UDP as well:

jnxRedAlarmState (OID: 1.3.6.1.4.1.2636.3.4.2.3.1)

jnxYellowAlarmState (OID: 1.3.6.1.4.1.2636.3.4.2.2.1)

is what you're after.  Use a raw value for MiB value type, format is enumeration (map values: 0=other, 1=off, 2=on), snmp get type=get next.