* Refactors EntityManager to not do any networking.
ServerEntityManager and ClientEntityManager now do the networking instead.
* Rename property for "backwards compat."
* Remove comented out code in robust server simulation
* Removed the Interfaces folder.
* All objects inside the GameObjects subfolders are now in the GameObjects namespace.
* Added a Resharper DotSettings file to mark the GameObjects subfolders as not providing namespaces.
* Simplified Robust.client.Graphics namespace.
* Automated remove redundant using statements.