Add .global property to team
We should add a boolean
global property to teams. Currently a global team is a team, where the object is not defined. This is a bit indirect, and can potentially be difficult to query, and difficult to be certain if a team is global or not (maybe the object has since been deleted, and thus there is no object, but that still doesn't make teams associated with that objects global, right?).
Adding a global property is straight-forward and can be validated to also mandate object to be undefined.