Track object version relationships

This adds another developer "helper trap" for inter-object version
dependencies. If an object that another object depends on is bumped
in version, this test will note the change and remind the developer
(or reviewer) that the parent needs a version bump and backport
rule added.

Change-Id: Ia81d034f850173401cd84a79b15ae0f7c80b9653
Merge "Track object version relationships"