Change benchmark result 'stats' key to 'scenes' with different content

Old:
   'stats': [
        {'scene_name': 'somescene', 'otherstat': 123}
    ]
New:
   'scenes': [
        {'name': 'somescene', stats: {'otherstat': 123}}
    ]

benchmark/space/__init__.py

@@ -154,7 +154,8 @@ def benchmark_draw_post_pixel(arg1, arg2):
         y = 0.70 * window_height
 
         score = 0
-        for stat in global_result_dict["stats"]:
+        for name_stats in global_result_dict["scenes"]:
+            stat = name_stats['stats']
             if stat["result"] == "OK":
                 score += stat["total_render_time"]
             else:
@@ -283,7 +284,7 @@ class ProgressProviderSink:
             self.current_step = step_name
             self.current_progress = 0
         progress_lock.release()
-           
+
     def scene(self, scene_name):
         progress_lock.acquire()
         self.current_scene = scene_name
@@ -375,8 +376,8 @@ def construct_platform_string(system_info):
 def convert_result_to_json_dict(ctx, results):
     # Convert custom classes to dictionaries for easier JSON dump.
     json_results = results
-    stats = json_results['stats']
-    json_results['stats'] = []
+    stats = json_results['scenes']
+    json_results['scenes'] = []
     for scene in ctx.scenes:
         if scene not in stats:
             continue
@@ -386,8 +387,8 @@ def convert_result_to_json_dict(ctx, results):
             stat['result'] = 'OK'
         else:
             stat = {'result': 'CRASH'}
-        stat["scene_name"] = scene
-        json_results['stats'] .append(stat)
+        json_results['scenes'].append({'name': scene,
+                                      'stats': stat})
     return json_results
 
 
@@ -462,7 +463,7 @@ def benchmark_thread(ctx):
         "blender_version": system_info.getBlenderVersion(ctx),
         "system_info": modify_system_info(blender_system_info),
         "device_info": modify_device_info(blender_device_info),
-        "stats": all_stats if all_stats else {}
+        "scenes": all_stats if all_stats else {}
     })
 
     progress_lock.acquire()
@@ -687,15 +688,16 @@ class BENCHMARK_OT_run_base(bpy.types.Operator):
             reset_global_state()
         else:
             global_result_stats = ""
-            for stat in global_result_dict["stats"]:
+            for name_stat in global_result_dict["scenes"]:
+                stat = name_stat["stats"]
                 if global_result_stats:
                     global_result_stats += "\n"
                 if stat["result"] == "OK":
-                    global_result_stats += "{}: {}" . format(stat["scene_name"],
+                    global_result_stats += "{}: {}" . format(name_stat['name'],
                         util.humanReadableTimeDifference(
                                 stat["total_render_time"]))
                 else:
-                    global_result_stats += "{}: {}" . format(stat["scene_name"],
+                    global_result_stats += "{}: {}" . format(name_stat['name'],
                         stat["result"])
         # TOGO(sergey): Use some more nice picture for the final slide.
         global global_background_image_path