Re-organize all projects (#4166)

Content.Shared/Window/SharedWindowComponent.cs

@@ -0,0 +1,18 @@
+#nullable enable
+using System;
+using Robust.Shared.GameObjects;
+using Robust.Shared.Serialization;
+
+namespace Content.Shared.Window
+{
+    public class SharedWindowComponent : Component
+    {
+        public override string Name => "Window";
+    }
+
+    [Serializable, NetSerializable]
+    public enum WindowVisuals
+    {
+        Damage
+    }
+}