Description of problem:
Informations about user/group permissions contain only name of specific object (role, vm, template, disk...) and that could be not unique. It should return object at least with id and name.

Version-Release number of selected component (if applicable):
ansible-2.5.0-2.fc27.noarch
ovirt-engine-4.2.3.2-0.1.el7.noarch

How reproducible: always


Steps to Reproduce:
1. run ansible playbook with tasks:

    - name: test
      ovirt_permissions_facts:
        auth: "{{ ovirt_auth }}"
        authz_name: "internal-authz"
        user_name: "admin"
        fetch_nested: False
    - debug:
        var: ovirt_permissions

2. see the output

Actual results:
ok: [my_engine] => {
    "ovirt_permissions": [
        {
            "group": "Everyone", 
            "role": "UserTemplateBasedVm", 
            "template": "Blank"
        },
        {
            "disk": "vm3-01_Disk1", 
            "role": "DiskOperator", 
            "user": "admin"
        }, 
...

Expected results:
ok: [my_engine] => {
    "ovirt_permissions": [
        {
            "group": {
                "id": "eee00000-0000-0000-0000-123456789eee"
                "name" : "Everyone"
            },
            "role": {
                "id": "def00009-0000-0000-0000-def000000009"
                "name": "UserTemplateBasedVm"
            },
            "template": {
                "id": "00000000-0000-0000-0000-000000000000"
                "name": "Blank"
            }
        },
...


Additional info:
In the way how it works now is ansible parameter 'fetch_nested' without use. It makes no difference in output when 'fetch_nested: True' is set.