[api-ref] doc does not list resource_request as a field of the response of port bulk create

[Balazs Gibizer]

The API ref of bulk port create[1] is incomplete. It does not list the resource_request key but the API actually returns that (for admins). See example run [2].

To reproduce:
1) create a network

openstack network create net0 \
--provider-network-type vlan \
--provider-physical-network physnet0 \
--provider-segment 100 \
##
openstack subnet create subnet0 \
--network net0 \
--subnet-range 10.0.4.0/24 \
##

2) create a QoS policy with a min bw rule

openstack network qos policy create qp0
openstack network qos rule create qp0 \
--type minimum-bandwidth \
--min-kbps 1000 \
--egress \

3) bulk create ports with that QoS policy. See [2]

[1] https://docs.openstack.org/api-ref/network/v2/?expanded=bulk-create-ports-detail#bulk-create-ports
[2] https://paste.opendev.org/show/808111/