Ghost roles create new minds, better tracking of roles at round end screen (#5175)

* Ghost roles now get new Minds

* Some round start/end button stuff

* Mind tracking for better round end reports

* Make traitor kill objectives use mind CharacterName rather than actual occupied entity ("kill brain" prevention)

* Transition over to EntityUid for mind stuff because that's the only way to do it

* BrainSystem fix for PR rebase

Content.Server/Body/Systems/BrainSystem.cs

@@ -43,7 +43,7 @@ namespace Content.Server.Body.Systems
             if (!EntityManager.HasComponent<IMoverComponent>(newEntity))
                 EntityManager.AddComponent<SharedDummyInputMoverComponent>(newEntity);
 
-            oldMind.Mind?.TransferTo(EntityManager.GetEntity(newEntity));
+            oldMind.Mind?.TransferTo(newEntity);
         }
     }
 }