重构并增加HitTest

Spine/Interfaces/IAnimation.cs

@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Spine.Interfaces
+{
+    public interface IAnimation
+    {
+        /// <summary>
+        /// 动画名称
+        /// </summary>
+        public string Name { get; }
+
+        /// <summary>
+        /// 动画时长
+        /// </summary>
+        public float Duration { get; }
+    }
+}