Feature/nat 212 213

This PR covers NAT-212 and NAT-213.

gso/services/ipam.py

@@ -325,7 +325,7 @@ def find_next_available_ip(infoblox_params, network_ref: str = ""):
     return received_ip[0]
 
 
-def allocate_host_inner(  # noqa: max-complexity=15
+def allocate_host_inner(  # noqa: C901
     hostname: str = "",
     addrs: Optional[Tuple] = None,
     networks: Optional[Tuple] = None,
@@ -419,7 +419,7 @@ def allocate_host_inner(  # noqa: max-complexity=15
     return HostAddresses(v4=ipaddress.ip_address(ipv4_addr), v6=ipaddress.ip_address(ipv6_addr))
 
 
-def allocate_host(  # noqa: max-complexity=15
+def allocate_host(  # noqa: C901
     hostname: str = "",
     service_type: str = "",
     service_networks: Optional[ServiceNetworks] = None,