增加MaterialCreateConfig::ToHashString函数，用于在未来生成区分同一材质不同配置的字串

inc/hgl/graph/mtl/Material2DCreateConfig.h

@@ -1,7 +1,7 @@
 #pragma once
 
 #include<hgl/graph/mtl/MaterialLibrary.h>
-#include<hgl/graph/mtl/MaterialConfig.h>
+#include<hgl/graph/mtl/MaterialCreateConfig.h>
 #include<hgl/graph/CoordinateSystem.h>
 #include<hgl/graph/VertexAttrib.h>
 
@@ -51,6 +51,8 @@ public:
        
         return off;
     }
+
+    const AnsiString ToHashString() override;
 };//struct Material2DCreateConfig:public MaterialCreateConfig
 
 DEFINE_MATERIAL_FACTORY_CLASS(VertexColor2D,        const Material2DCreateConfig)

inc/hgl/graph/mtl/Material3DCreateConfig.h

@@ -1,7 +1,7 @@
 #pragma once
 
 #include<hgl/graph/mtl/MaterialLibrary.h>
-#include<hgl/graph/mtl/MaterialConfig.h>
+#include<hgl/graph/mtl/MaterialCreateConfig.h>
 #include<hgl/graph/CoordinateSystem.h>
 #include<hgl/graph/VertexAttrib.h>
 
@@ -49,6 +49,8 @@ public:
 
         return off;
     }
+
+    const AnsiString ToHashString() override;
 };//struct Material3DCreateConfig:public MaterialCreateConfig
 
 DEFINE_MATERIAL_FACTORY_CLASS(VertexColor3D,    const Material3DCreateConfig);

inc/hgl/graph/mtl/MaterialCreateConfig.h

@@ -52,5 +52,7 @@ public:
 
         return off;
     }
+
+    virtual const AnsiString ToHashString();
 };//struct MaterialCreateConfig
 STD_MTL_NAMESPACE_END