Implement save benchmark operator

benchmark/space/__init__.py

@@ -604,7 +604,8 @@ class BENCHMARK_OT_save(bpy.types.Operator):
     )
 
     def execute(self, context):
-        print("Saving to " + self.filepath)
+        with open(self.filepath, "w") as f:
+            f.write(json.dumps(global_result_dict, sort_keys=True, indent=2))
         return {'FINISHED'}
 
     def invoke(self, context, event):