c437e05ad0
This creates a new package -- podutils. The env var related code doesn't really have any business being part of the node package, and to create a separation of concerns, faster tests, and just general code isolation and cleanliness, we can move the env var related code into this package. This change is purely hygiene, and not logic related. For node, the package is under internal, because the constructor references manager, which is an internal package.