Retrieves a list of images @return [Excon::Response] response:

  * body [Hash]:
    * images [Array]:
      * [Hash]:
        * id [String] - flavor id
        * links [Array] - image links
        * name [String] - image name

@raise [Fog::Compute::RackspaceV2::NotFound] - HTTP 404 @raise [Fog::Compute::RackspaceV2::BadRequest] - HTTP 400 @raise [Fog::Compute::RackspaceV2::InternalServerError] - HTTP 500 @raise [Fog::Compute::RackspaceV2::ServiceError] @see docs.rackspace.com/servers/api/v2/cs-devguide/content/List_Flavors-d1e4188.html