How GS manage pointers to a saved objects?
Because I could see a scenario (a la marea and fuel) where we store packages (kind of
roots of famix graphs) into GS (but it could be Fuel)
the problem is how to handle pointers pointing from one of these packages to another one
that it not loaded.
Second problem: how do you prevent that one query like allClasses reloads everything in
memory (which you cannot because you do not have enough memory
else everything would be in memory).
Stef