Increase support of DHCP relay servers under networks from 3 to 16

[miguecor]

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Description

Currently the ansible-dcnm module only has support for 3 DHCP relay servers created under the networks. however, according to the NDFC documentation, the native support is for 16 relay servers:
Cisco NDFC-Fabric Controller Configuration Guide, Release 12.1.2e

New or Affected modules(s):

• dcnm_interface.py
• dcnm_network.py

DCNM version

• V 3.2.2

Potential ansible task config

There are currently 3 static cases for 1-3 DHCP relay servers to be added to the individual networks. The fix would be to add the other 13 static cases to increase the number of servers that can be added to the max number of 16.

There will also be the need to modify the unit-testing to reflect these changes.

- name: Ensure networks exist with desired parameters
      cisco.dcnm.dcnm_network:
        fabric: nac-fabric1
        state: merged
        config:
          - net_name: NaC-Net01
            vrf_name: NaC-VRF01
            net_id: 130001
            vlan_id: 2301
            gw_ip_subnet: 192.168.12.1/24
            attach:
              - ip_address: 10.12.138.31
              - ip_address: 10.12.138.32
              - ip_address: 10.12.138.33
              - ip_address: 10.12.138.34
              - ip_address: 10.12.138.35
              - ip_address: 10.12.138.36
              - ip_address: 10.12.138.37
              - ip_address: 10.12.138.38
              - ip_address: 10.12.138.39
              - ip_address: 10.12.138.40
              - ip_address: 10.12.138.41
              - ip_address: 10.12.138.42
              - ip_address: 10.12.138.43
              - ip_address: 10.12.138.44
              - ip_address: 10.12.138.45
              - ip_address: 10.12.138.46

References

Additional context
Add any other context or screenshots about the feature request here.