Upgrade gltf-pipeline and fix test

Author: lilleyse

Source/ThirdParty/GltfPipeline/updateVersion.js

@@ -853,7 +853,8 @@ define([
             (!defined(node.translation) || Cartesian3.fromArray(node.translation).equals(Cartesian3.ZERO)) &&
             (!defined(node.scale) || Cartesian3.fromArray(node.scale).equals(new Cartesian3(1.0, 1.0, 1.0))) &&
             (!defined(node.rotation) || Cartesian4.fromArray(node.rotation).equals(new Cartesian4(0.0, 0.0, 0.0, 1.0))) &&
-            (!defined(node.matrix) || Matrix4.fromColumnMajorArray(node.matrix).equals(Matrix4.IDENTITY));
+            (!defined(node.matrix) || Matrix4.fromColumnMajorArray(node.matrix).equals(Matrix4.IDENTITY)) &&
+            !defined(node.extensions && !defined(node.extras));
     }
 
     function deleteNode(gltf, nodeId) {

Specs/Scene/ModelSpec.js

@@ -2080,7 +2080,7 @@ defineSuite([
             expect(scene).toRender([0, 0, 0, 255]);
             m.show = true;
             m.zoomTo();
-            expect(scene).toRender([51, 51, 51, 255]); // Cesium has minimum lighting
+            expect(scene).toRender([0, 0, 0, 255]);
             m.show = false;
 
             primitives.remove(m);