A settings entity represents some configuration that could be applied to a widget
{ attributes : List Bubblegum.Entity.Attribute.Model }
The core representation of settings entity is mostly a list of attributes.
setAttributes : List Bubblegum.Entity.Attribute.Model -> Model -> Model
Assign attributes to an entity
asAttributesIn : Model -> List Bubblegum.Entity.Attribute.Model -> Model
Assign attributes to an entity