Cigarette ecs (#4495)

* Reorganized Shared.Storage folder

* Replace StorageCounter with Item Counter

* Change stack visuals setting data

* Fix mirrorcult suggestions

* Fix items from upstream

* Fix type formatting

Content.Server/Storage/EntitySystems/ItemMapperSystem.cs

@@ -0,0 +1,43 @@
+using System.Collections.Generic;
+using Content.Server.Storage.Components;
+using Content.Shared.Storage.Components;
+using Content.Shared.Storage.EntitySystems;
+using JetBrains.Annotations;
+using Robust.Shared.Analyzers;
+using Robust.Shared.Containers;
+using Robust.Shared.GameObjects;
+
+namespace Content.Server.Storage.EntitySystems
+{
+    [UsedImplicitly]
+    public class ItemMapperSystem : SharedItemMapperSystem
+    {
+        protected override bool TryGetLayers(ContainerModifiedMessage msg,
+            ItemMapperComponent itemMapper,
+            out IReadOnlyList<string> showLayers)
+        {
+            if (msg.Container.Owner.TryGetComponent(out ServerStorageComponent? component))
+            {
+                var containedLayers = component.StoredEntities ?? new List<IEntity>();
+                var list = new List<string>();
+                foreach (var mapLayerData in itemMapper.MapLayers.Values)
+                {
+                    foreach (var entity in containedLayers)
+                    {
+                        if (mapLayerData.Whitelist.IsValid(entity))
+                        {
+                            list.Add(mapLayerData.Layer);
+                            break;
+                        }
+                    }
+                }
+
+                showLayers = list;
+                return true;
+            }
+
+            showLayers = new List<string>();
+            return false;
+        }
+    }
+}