Move forward with implementaiton

- The decision was made that blender and scenes can be found next
  to the benchmark running script.

- Show real image of the currently rendering scene.

benchmark/foundation/progress.py

@@ -39,6 +39,9 @@ class DefaultProgressProvider:
     def step(self, step_name):
         pass
 
+    def scene(self, scene_name):
+        pass
+
 
 PROGRESS_PROVIDER = DefaultProgressProvider()
 
@@ -56,10 +59,15 @@ def progressClear():
     """
     PROGRESS_PROVIDER.clear()
 
+
 def step(step_name):
     PROGRESS_PROVIDER.step(step_name)
 
 
+def scene(scene_name):
+    PROGRESS_PROVIDER.scene(scene_name)
+
+
 def setProvider(provider):
     """
     Override progress provider with a given name.