add "binding" in "struct ShaderStage"

inc/hgl/graph/shader/ShaderResource.h

@@ -14,6 +14,8 @@ VK_NAMESPACE_BEGIN
         uint        component;
 
         VkFormat    format;
+
+        uint        binding;
     };//struct ShaderStage
 
     using ShaderStageList=ObjectList<ShaderStage>;

src/SceneGraph/shader/ShaderResource.cpp

@@ -45,6 +45,8 @@ VK_NAMESPACE_BEGIN
                 ss->name.SetString((char *)data,str_len);
                 data+=str_len;
 
+                ss->binding=i;
+
                 ss_list.Add(ss);
             }