Component Messaging Rework (#36)

* Remove DiscoBall.

* Changes `IEntity.AddComponent(IComponent)` to `IEntity.AddComponent<T>`.

* Pulled ComponentManager registration out of Component into Entity.

* Killed component message params.

* Updated engine submodule.

Content.Server/GameObjects/EntitySystems/InteractionSystem.cs

@@ -7,6 +7,7 @@ using SS14.Shared.Interfaces.GameObjects.Components;
 using SS14.Shared.IoC;
 using System.Collections.Generic;
 using System.Linq;
+using SS14.Shared.Enums;
 
 namespace Content.Server.GameObjects.EntitySystems
 {