Add ovirt_vm_os_info

[mnecas]

Add ovirt_vm_os_info as suggested in #24
Not sure if this is the best use case, but still wanted to add the PR where we could discuss it.

Right now the module return list of dictionaries which have attributes like name, architecture etc. in [1].
When I tried to get a list of all supported OS names it was so large list with all attributes that I did have to add filter_keys to filter the output. For example, the large_icon and small_icon attributes are unnecessary for ansible (you can check them in [1] or /ovirt-engine/api/operatingsystems).
To specific attributes like a name (you can check examples).

example of the output

 "ovirt_vm_os": [
        {
            "architecture": "x86_64",
            "description": "Other OS",
            "href": "/ovirt-engine/api/operatingsystems/0",
            "id": "0",
            "large_icon": {
                "href": "/ovirt-engine/api/icons/2ef463ea-7c28-49e1-b977-471eaf087d1e",
                "id": "2ef463ea-7c28-49e1-b977-471eaf087d1e"
            },
            "name": "other",
            "small_icon": {
                "href": "/ovirt-engine/api/icons/1f91726e-f467-463e-936a-46c19d6e96a2",
                "id": "1f91726e-f467-463e-936a-46c19d6e96a2"
            }
        },
        {
            "architecture": "x86_64",
            "description": "Windows XP",
            "href": "/ovirt-engine/api/operatingsystems/1",
            "id": "1",
            "large_icon": {
                "href": "/ovirt-engine/api/icons/e00ddcc3-2728-26a2-09b8-49740dfc7b9b",
                "id": "e00ddcc3-2728-26a2-09b8-49740dfc7b9b"
            },
            "name": "windows_xp",
            "small_icon": {
                "href": "/ovirt-engine/api/icons/8ef03a05-2ed5-12a2-efa1-eead0d9c0644",
                "id": "8ef03a05-2ed5-12a2-efa1-eead0d9c0644"
            }
        }
    ]

Questions

• if I should only return simply a list of names or keep it like it is.
• if I should return ovirt_vm_os or ovirt_vm_oss, because everywhere we return plural of it but don't like the doubles.

[1] http://ovirt.github.io/ovirt-engine-api-model/master/#types/operating_system_info

@mwperina @dangel101 @snecklifter

[snecklifter]

Ah, ok, looks like we've both been working on the same thing! :)

snecklifter@f4c4733

As per the commit comment its mostly copy/paste from your vnic_profile_info module anyway. Let me know if you want to create a PR anyway.

[snecklifter]

@mnecas filter keys is nice, my only other question would be whether you want to add a line to the other modules referencing this one in the same PR?
E.g. snecklifter@f4c4733#diff-e6ae0f16accf2aa74aee831940842301R151

Otherwise LGTM!

[mwperina]

+1