Fix adding abstract property `Properties` to the wrong type
Fix adding abstract property `Properties` to the wrong type

Previously this added the property to `ComputerLoader`, which is not
intended but ultimately harmless (as `ComputerLoader` is never
instanciated).

However, using the external XML file Patcher Task system, it instead
wrote the property to `Computer`, which made .NET very very angry.

Arkhist/Hacknet-Pathfinder,Arkhist/Hacknet-Pathfinder,Arkhist/Hacknet-Pathfinder,Arkhist/Hacknet-Pathfinder