reducing the amount of tests

All tests configurations are still there, in allTests instead of tests.
This is done since tests fail randomally, probably because of the amount of data transfered between browserstack and travis

Viewer/tests/validation/config.json

@@ -10,6 +10,50 @@
             "referenceImage": "ControlDefault.png"
         },
         {
+            "title": "Diffuse",
+            "createMesh": true,
+            "createMaterial": true,
+            "configuration": {
+                "extends": "extended",
+                "castShadow": true,
+                "model": {
+                    "material": {
+                        "albedoColor": {
+                            "r": 0,
+                            "g": 0,
+                            "b": 1
+                        },
+                        "reflectivityColor": {
+                            "r": 0,
+                            "g": 0,
+                            "b": 0
+                        },
+                        "microSurface": 0
+                    }
+                }
+            },
+            "referenceImage": "Diffuse.png"
+        },
+        {
+            "title": "BrainStem Environment",
+            "configuration": {
+                "extends": "extended"
+            },
+            "model": "/dist/assets/BrainStem/BrainStem.gltf",
+            "referenceImage": "BrainStemEnv.png",
+            "enableEnvironment": true
+        }
+    ],
+    "allTests": [
+        {
+            "title": "Control Default",
+            "createMesh": true,
+            "configuration": {
+                "extends": "minimal"
+            },
+            "referenceImage": "ControlDefault.png"
+        },
+        {
             "title": "Control",
             "createMesh": true,
             "configuration": {