Re-organize all projects (#4166)

Content.Client/Pulling/PullingSystem.cs

@@ -0,0 +1,28 @@
+using Content.Shared.Pulling;
+using JetBrains.Annotations;
+using Robust.Client.Physics;
+
+namespace Content.Client.Pulling
+{
+    [UsedImplicitly]
+    public class PullingSystem : SharedPullingSystem
+    {
+        public override void Initialize()
+        {
+            base.Initialize();
+
+            UpdatesAfter.Add(typeof(PhysicsSystem));
+
+            SubscribeLocalEvent<PullableComponent, PullableMoveMessage>(OnPullableMove);
+            SubscribeLocalEvent<PullableComponent, PullableStopMovingMessage>(OnPullableStopMove);
+        }
+
+        public override void Shutdown()
+        {
+            base.Shutdown();
+
+            UnsubscribeLocalEvent<PullableComponent, PullableMoveMessage>(OnPullableMove);
+            UnsubscribeLocalEvent<PullableComponent, PullableStopMovingMessage>(OnPullableStopMove);
+        }
+    }
+}