Adds support for a map rotation system. (#7162)

* Adds support for a map rotation system.
It is now the default way of selecting a map, map votes have been disabled.

* whoops

* Randomize the map it starts off with, too.
(it'd pick bagel every time otherwise)

* Address review

* remove knight from rotation due to it being an unmaintained map.

* minor cleanup

Content.Server/Maps/IGameMapManager.cs

@@ -56,7 +56,7 @@ public interface IGameMapManager
     /// Gets the currently selected map, double-checking if it can be used.
     /// </summary>
     /// <returns>selected map</returns>
-    GameMapPrototype GetSelectedMapChecked(bool loud = false);
+    GameMapPrototype GetSelectedMapChecked(bool loud = false, bool markAsPlayed = false);
 
     /// <summary>
     /// Checks if the given map exists