Changes to Set port mappings

added the new optional request property confirm_restart

added the new optional request property ports/items/description

added the new optional request property ports/items/host_port

added the new optional request property ports/items/nic_index

added the new optional request property ports/items/source_cidrs

added the optional property items/description to the response with the 200 status

added the optional property items/forwarding_backend to the response with the 200 status

added the optional property items/guest_ip to the response with the 200 status

added the optional property items/nic_index to the response with the 200 status

added the optional property items/public_host to the response with the 200 status

added the optional property items/restart_required to the response with the 200 status

added the optional property items/source_cidrs to the response with the 200 status