add mssing move constructor.

code/X3D/X3DExporter.hpp

@@ -62,6 +62,12 @@ class X3DExporter {
                 Value(value) {
             // empty
         }
+
+        SAttribute(SAttribute && rhs) :
+                Name(std::move(rhs.Name)),
+                Value(std::move(rhs.Value) {
+            // empty
+        }
     };
 
     /***********************************************/

include/assimp/matrix3x3.inl

@@ -5,8 +5,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2020, assimp team
 
-
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,