clean up tests

tests/SharpGLTF.Toolkit.Tests/Scenes/SceneBuilderTests.cs

@@ -20,6 +20,7 @@ namespace SharpGLTF.Scenes
     using SKINNEDVERTEX4 = VertexBuilder<VertexPosition, VertexEmpty, VertexJoints4>;
     using SKINNEDVERTEX8 = VertexBuilder<VertexPosition, VertexEmpty, VertexJoints8>;
 
+
     [Category("Toolkit.Scenes")]
     public partial class SceneBuilderTests
     {
@@ -1061,4 +1062,4 @@ namespace SharpGLTF.Scenes
         }
 
     }
-}
+}