Increase render count for glTF validation

tests/validation/config.json

@@ -182,21 +182,21 @@
     },
     {
       "title": "GLTF Normals",
-      "renderCount": 10,
+      "renderCount": 20,
       "scriptToRun": "/Demos/GLTFNormals/index.js",
       "functionToCall": "createScene",
       "referenceImage": "gltfnormals.png"
     },
     {
       "title": "PBR glossy",
-      "renderCount": 10,
+      "renderCount": 20,
       "scriptToRun": "/Demos/PBRGlossy/index.js",
       "functionToCall": "CreatePBRGlossyScene",
       "referenceImage": "pbrglossy.png"
     },
     {
       "title": "PBR rough",
-      "renderCount": 10,
+      "renderCount": 20,
       "scriptToRun": "/Demos/PBRRough/index.js",
       "functionToCall": "CreatePBRRoughScene",
       "referenceImage": "PBRRough.png"