Structure describing the PackageInfo entries to register or unregister during the Package Manager registration process.
        
          Note: The changedFrom and changedTo collections are guaranteed to match in length and ordering.
      
| added | A collection of PackageInfo entries to add during the Package Manager registration process. | 
| changedFrom | A collection of PackageInfo entries describing packages to be overridden by another version during the Package Manager registration process. | 
| changedTo | A collection of PackageInfo entries describing packages that will override a previously registered version during the Package Manager registration process. | 
| removed | A collection of PackageInfo entries to remove during the Package Manager registration process. |