Support Mnemonic pathing

As a user, it would be helpful to be able to address an object via a path structure using friendly names, rather than relying on UUIDs.

This would require a method for resolving object names in categories, handling duplicates (or banning them).
It would also be good to do this in such a way that IDE's can tab-complete the paths using object inspection.

Suggested by aperepel in #31 