Adding back rest of the menu, ported most of Reflection Inspector for new UI

src/UI/Inspectors/Reflection/CacheMemberList.cs

@@ -0,0 +1,76 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using UnityEngine;
+using UnityExplorer.UI.Widgets;
+
+namespace UnityExplorer.UI.Inspectors.Reflection
+{
+    public class CacheMemberList : IPoolDataSource
+    {
+        public ScrollPool ScrollPool { get; }
+        public ReflectionInspector Inspector { get; }
+
+        public CacheMemberList(ScrollPool scrollPool, ReflectionInspector inspector)
+        {
+            this.ScrollPool = scrollPool;
+            this.Inspector = inspector;
+        }
+
+        public int ItemCount => Inspector.filteredMembers.Count;
+
+        public int GetRealIndexOfTempIndex(int index)
+        {
+            if (index < 0 || index >= Inspector.filteredToRealIndices.Count)
+                return -1;
+            return Inspector.filteredToRealIndices[index];
+        }
+
+        public ICell CreateCell(RectTransform cellTransform) => new CellViewHolder(cellTransform.gameObject);
+
+        public void DisableCell(ICell cell, int index)
+        {
+            var root = (cell as CellViewHolder).UIRoot;
+            DisableContent(root);
+            cell.Disable();
+        }
+
+        public void SetCell(ICell icell, int index)
+        {
+            var root = (icell as CellViewHolder).UIRoot;
+
+            if (index < 0 || index >= ItemCount)
+            {
+                DisableContent(root);
+                icell.Disable();
+                return;
+            }
+
+            float start = Time.realtimeSinceStartup;
+            index = GetRealIndexOfTempIndex(index);
+
+            var cache = Inspector.allMembers[index];
+            cache.Enable();
+
+            var content = cache.UIRoot;
+
+            if (content.transform.parent.ReferenceEqual(root.transform))
+                return;
+
+            var orig = content.transform.parent;
+
+            DisableContent(root);
+
+            content.transform.SetParent(root.transform, false);
+            //ExplorerCore.Log("Set cell " + index + ", took " + (Time.realtimeSinceStartup - start) + " secs");
+            //ExplorerCore.Log("orig parent was " + (orig?.name ?? " <null>"));
+        }
+
+        private void DisableContent(GameObject cellRoot)
+        {
+            if (cellRoot.transform.childCount > 0 && cellRoot.transform.GetChild(0) is Transform existing)
+                existing.transform.SetParent(Inspector.InactiveHolder.transform, false);
+        }
+    }
+}