调整服务器逻辑

1、调整Entity.AddComponent方法添加的组件Id为父组件的Id。
2、增加了ISupportedSingleCollection和ISingleCollectionRoot接口.
3、增加了SingleCollection、用于把子组件保存到单独的数据库表的功能，配合ISupportedSingleCollection和ISingleCollectionRoot。

Assets/GameScripts/DotNet/Core/SingleCollection/SingleCollection.cs

@@ -0,0 +1,108 @@
+#if TENGINE_NET
+using TEngine.Core.DataBase;
+using TEngine.DataStructure;
+// ReSharper disable SuspiciousTypeConversion.Global
+
+namespace TEngine.Core;
+
+public class SingleCollection : Singleton<SingleCollection>
+{
+    private readonly OneToManyHashSet<Type, string> _collection = new OneToManyHashSet<Type, string>();
+    private readonly OneToManyList<int, SingleCollectionInfo> _assemblyCollections = new OneToManyList<int, SingleCollectionInfo>();
+
+    private sealed class SingleCollectionInfo
+    {
+        public readonly Type RootType;
+        public readonly string CollectionName;
+
+        public SingleCollectionInfo(Type rootType, string collectionName)
+        {
+            RootType = rootType;
+            CollectionName = collectionName;
+        }
+    }
+    
+    protected override void OnLoad(int assemblyName)
+    {
+        foreach (var type in AssemblyManager.ForEach(assemblyName, typeof(ISupportedSingleCollection)))
+        {
+            var customAttributes = type.GetCustomAttributes(typeof(SingleCollectionAttribute), false);
+
+            if (customAttributes.Length == 0)
+            {
+                Log.Error($"type {type.FullName} Implemented the interface of ISingleCollection, requiring the implementation of SingleCollectionAttribute");
+                continue;
+            }
+
+            var singleCollectionAttribute = (SingleCollectionAttribute)customAttributes[0];
+            var rootType = singleCollectionAttribute.RootType;
+            var collectionName = singleCollectionAttribute.CollectionName;
+            _collection.Add(rootType, collectionName);
+            _assemblyCollections.Add(assemblyName, new SingleCollectionInfo(rootType, collectionName));
+        }
+    }
+
+    protected override void OnUnLoad(int assemblyName)
+    {
+        if (!_assemblyCollections.TryGetValue(assemblyName, out var types))
+        {
+            return;
+        }
+        
+        foreach (var singleCollectionInfo in types)
+        {
+            _collection.RemoveValue(singleCollectionInfo.RootType, singleCollectionInfo.CollectionName);
+        }
+            
+        _assemblyCollections.RemoveByKey(assemblyName);
+    }
+
+    public async FTask GetCollections(Entity entity)
+    {
+        if (entity is not ISingleCollectionRoot)
+        {
+            return;
+        }
+        
+        if (!_collection.TryGetValue(entity.GetType(), out var collections))
+        {
+            return;
+        }
+
+        var scene = entity.Scene;
+        var worldDateBase = scene.World.DateBase;
+
+        using (await IDateBase.DataBaseLock.Lock(entity.Id))
+        {
+            foreach (var collectionName in collections)
+            {
+                var singleCollection = await worldDateBase.QueryNotLock<Entity>(entity.Id, collectionName);
+                singleCollection.Deserialize(scene);
+                entity.AddComponent(singleCollection);
+            }
+        }
+    }
+
+    public async FTask SaveCollections(Entity entity)
+    {
+        if (entity is not ISingleCollectionRoot)
+        {
+            return;
+        }
+
+        using var collections = ListPool<Entity>.Create();
+        
+        foreach (var (_, treeEntity) in entity.GetTree)
+        {
+            if (treeEntity is not ISupportedSingleCollection)
+            {
+                continue;
+            }
+            
+            collections.Add(treeEntity);
+        }
+
+        await entity.Scene.World.DateBase.Save(entity.Id, collections);
+    }
+}
+#endif

Assets/GameScripts/DotNet/Core/SingleCollection/SingleCollection.cs.meta

@@ -0,0 +1,11 @@
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