(client)feat:实现子弹定义以及生成，实现初始化动画，实现血条 (#43)

Co-authored-by: zzdxxz <2079238449@qq.com>
Co-committed-by: zzdxxz <2079238449@qq.com>

Client/Assets/Scripts/Item/ItemResource.cs

@@ -0,0 +1,12 @@
+using UnityEngine;
+
+namespace Item
+{
+    public class ItemResource
+    {
+        public string name;
+        public string description;
+        
+        public Sprite icon;
+    }
+}