Re-organize all projects (#4166)

Content.Server/GameTicking/Presets/PresetExtended.cs

@@ -0,0 +1,18 @@
+using System.Collections.Generic;
+using Robust.Server.Player;
+
+namespace Content.Server.GameTicking.Presets
+{
+    [GamePreset("extended")]
+    public class PresetExtended : GamePreset
+    {
+        public override string Description => "No antagonists, have fun!";
+        public override string ModeTitle => "Extended";
+
+        public override bool Start(IReadOnlyList<IPlayerSession> readyPlayers, bool force = false)
+        {
+            // We do nothing. This is extended after all...
+            return true;
+        }
+    }
+}