(client) feat:实现摄像机跟踪与移动，实现任意位置生成实体，实现更安全的资源加载方式（指定unity内部加载资源） (#42)

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

Client/Assets/Scripts/Data/ItemDef.cs

@@ -0,0 +1,13 @@
+namespace Data
+{
+    public class ItemDef:Define
+    {
+        public ImageDef texture;
+        public AttributesDef attributes;
+    }
+
+    public class WeaponDef : ItemDef
+    {
+        
+    }
+}