exclude IPs when getting next available IP

[mj790]

The API has the ability to skip/exclude a certain number of ips when requesting the next available ip. Our old automation, which used the Infoblox API, would automatically find the first few ips in a subnet and exclude them. Now that we're using the Terraform provider, we lost that ability and it's a bit problematic.

Can the provider implement the same option as the API for skipping ips when requesting the next available ip?

[mponton-cn]

@mj790 FYI, this was requested in 2021 in #174 and has yet to be implemented. We could use that feature too but I'm not holding my breath.