Dynamically add host record to next available ip with an exclusion list

[hmalphettes]

The usage of nios_next_ip when creating a host record has a few limitations:

• a list of IPs to exclude cannot be defined
• a DHCP range cannot be the target

These changes support passing the function call as documented in https://ipam.illinois.edu/wapidoc/objects/record.host_ipv4addr.html:

For example

- name: >
    Dynamically add host record to next available ip in
    a network and excluding a list of IPs
    see https://ipam.illinois.edu/wapidoc/objects/record.host_ipv4addr.html
  infoblox.nios_modules.nios_host_record:
    name: host.ansible.com
    ipv4:
      - address:
        _object_function: next_available_ip
        _parameters:
          exclude: ['192.168.10.1', '192.168.10.2', '192.168.10.3'],
        _result_fields: ips
        _object: network
        _object_parameters:
          network: 192.168.10.0/24
    comment: this is a test comment
    state: present
    provider:
      host: "{{ inventory_hostname_short }}"
      username: admin
      password: admin
  connection: local

I realize this is done fairly quickly without test units and other missing pieces before it can be merged.
I appreciate your guidance: let me know if this is interesting for the community and if this is the right syntax to expose.
Thanks!