NodeGroup remake deferment (#1268)

* Remove Unnecessary AnchorUpdate() call

* NodeGroupManager

* NodeGroupManager issues NodeGroup remake attempts

* Code cleanup

* NodeGroupManager only stores dirty groups, handles them on next frame

* Removes unused NodeGroupManager dependency

* Prevents OnRemoveNode from iterating over every connector after the first time

* Revert "Prevents OnRemoveNode from iterating over every connector after the first time"

This reverts commit c72af4b18d55192af789514f74bef893cf076fbc.

* Dependancy warning fix

Co-authored-by: py01 <pyronetics01@gmail.com>

Content.Server/GameObjects/Components/NodeContainer/NodeGroups/INodeGroupManager.cs

@@ -0,0 +1,37 @@
+using System.Collections.Generic;
+
+namespace Content.Server.GameObjects.Components.NodeContainer.NodeGroups
+{
+    /// <summary>
+    ///     Maintains a set of <see cref="INodeGroup"/>s that need to be remade with <see cref="INodeGroup.RemakeGroup"/>.
+    ///     Defers remaking to reduce recalculations when a group is altered multiple times in a frame.
+    /// </summary>
+    public interface INodeGroupManager
+    {
+        /// <summary>
+        ///     Queue up an <see cref="INodeGroup"/> to be remade.
+        /// </summary>
+        void AddDirtyNodeGroup(INodeGroup nodeGroup);
+
+        void Update(float frameTime);
+    }
+
+    public class NodeGroupManager : INodeGroupManager
+    {
+        private readonly HashSet<INodeGroup> _dirtyNodeGroups = new HashSet<INodeGroup>();
+
+        public void AddDirtyNodeGroup(INodeGroup nodeGroup)
+        {
+            _dirtyNodeGroups.Add(nodeGroup);
+        }
+
+        public void Update(float frameTime)
+        {
+            foreach (var group in _dirtyNodeGroups)
+            {
+                group.RemakeGroup();
+            }
+            _dirtyNodeGroups.Clear();
+        }
+    }
+}