Re-organize all projects (#4166)

Content.Server/Kitchen/EntitySystems/MicrowaveSystem.cs

@@ -0,0 +1,19 @@
+using Content.Server.Kitchen.Components;
+using JetBrains.Annotations;
+using Robust.Shared.GameObjects;
+
+namespace Content.Server.Kitchen.EntitySystems
+{
+    [UsedImplicitly]
+    internal sealed class MicrowaveSystem : EntitySystem
+    {
+        public override void Update(float frameTime)
+        {
+            base.Update(frameTime);
+            foreach (var comp in ComponentManager.EntityQuery<MicrowaveComponent>(true))
+            {
+                comp.OnUpdate();
+            }
+        }
+    }
+}