[FEATURE REQUEST] support multiple NICs

[nicholasmhughes]

Copied from Salt issue 56153 opened by @tkykm
saltstack/salt#56153 (comment)

Is your feature request related to a problem? Please describe.
It would be good to have a option about multiple NICs.
In some case, we want to associate a VM to 2 or more subnet e.g. frontend and backend

Thanks!

Describe the solution you'd like
Ideally profile

vm:
  provider: azure
  nics:
    - network: vnet1
       subnet: subnet1
    - network: vnet1
       subnet: subnet2
       security_group: sg1

Describe alternatives you've considered
N/A

Additional context
N/A