重构并增加HitTest

Spine/Implementations/V34/Attachments/Attachment34.cs

@@ -0,0 +1,24 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Spine.Interfaces;
+using Spine.Interfaces.Attachments;
+using SpineRuntime34;
+
+namespace Spine.Implementations.V34.Attachments
+{
+    internal abstract class Attachment34(Attachment innerObject) : IAttachment
+    {
+        private readonly Attachment _o = innerObject;
+
+        public virtual Attachment InnerObject => _o;
+
+        public string Name => _o.Name;
+
+        public abstract int ComputeWorldVertices(ISlot slot, ref float[] worldVertices);
+
+        public override string ToString() => _o.ToString();
+    }
+}