Map Netbox data to Zabbix macro's

[TheNetworkGuy]

Allow for some form of dynamic data allocation per Netbox device object. This could be useful for many instances.

One useful example would be mapping the primary cluster member name to a macro. After that Zabbix could trigger based on the current active cluster member name == macro (with data from Netbox.)

This step would shift the control plane for macro's one step further down into Netbox.

[TheNetworkGuy]

I won't pick this up any time soon due to time constraints and the low priority. Should anyone be interested please make sure to vote on this issue since it helps me dedicate time to feature requests.

[TheNetworkGuy]

Might pick this up soon after the release of #30 .

[q1x]

I Would like to start work on this. I'm thinking of something along the lines of the following:

1. Allowing for mapping NetBox fields to usermacros in the same way we can use the current inventory map, giving the possibility to use most NetBox static data in usermacros.
2. Allowing for mapping arbitrary config context keys to usermacros allowing for greater flexibility in usermacro overrides when needed.

Should be applicable to devices and vms, off course.

Any feedback before I start hacking?