api-ref: add missing response body for groups
1. https://developer.openstack.org/api-ref/block-storage/v3/#create-group
"Create group" should have response body, like
{
"group": {
"id": "2c311e17-9daa-4229-926a-cb9e233f06b0",
"name": "tempest-GroupsTest-Group-938181552"
}
}
2. https://developer.openstack.org/api-ref/block-storage/v3/#create-group-from-source
"Create group from source" should have response body, like
{
"group": {
"id": "2c311e17-9daa-4229-926a-cb9e233f06b0",
"name": "tempest-GroupsTest-Group-938181552"
}
}
3. https://developer.openstack.org/api-ref/block-storage/v3/#show-group-details
group_type in "Show group details" or "List groups with details"
or "Create group" should be an uuid string, not object.
4. group_snapshot_id and source_group_id should be optional in the
response of "Show group details".
Change-Id: Iea0c8f0f6fec1b8460c4ea53ed6468adbc31abf2
bb703a9f4d