Return miq_groups on api entrypoint

[jntullo]

Resolves #74

This enhancement returns miq_groups on the entrypoint

GET /api
{
   "name": "API",
   "description": "REST API",
   "settings": {...},
   "identity": {
      ...
      "groups" [...],
      "miq_groups": [
         { "href": "/api/groups/:id", "id": ":id" ... } ...
      ]
   }
   ...
}

@miq-bot add_label enhancement
@miq-bot assign @abellotti
cc: @AllenBW

[abellotti]

I think the miq_groups in identity is returned with all calls (i.e. without attributes=authorization), in which case if you can update the description and move the test here to the regular entrypoint (not authorization).

[abellotti]

Thanks @jntullo for the update. Maybe we should also add the groups => [ ] here before miq_groups for completion. It may never have been added to the spec.

[miq-bot]

Checked commit jntullo@5b5cad8 with ruby 2.2.6, rubocop 0.47.1, and haml-lint 0.20.0
3 files checked, 0 offenses detected
Everything looks fine. 🏆

[abellotti]

I'm afraid to ask: why was this needed, what is @req.subject in the case of entrypoint, who calls it with that second argument ?

[jntullo]

@abellotti I used this for rendering the miq_groups properly, and since the /api endpoint doesn't have the groups subject, I pass in the :groups parameter

[abellotti]

LGTM!! Thanks @jntullo for the enhancement.

[AllenBW]

O frabjous day! Callooh! Callay!