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/GameTicking/Presets/GamePreset.cs

@@ -94,7 +94,7 @@ namespace Content.Server.GameTicking.Presets
             if (canReturn)
                 mind.Visit(ghost);
             else
-                mind.TransferTo(ghost);
+                mind.TransferTo(ghost.Uid);
             return true;
         }