bit depth in det writer config

std-det-writer/include/DetWriterConfig.hpp

@@ -17,12 +17,14 @@ struct DetWriterConfig {
 
         return {
                 config_parameters["detector_name"].GetString(),
+                config_parameters["bit_depth"].GetInt(),
                 config_parameters["image_height"].GetInt(),
                 config_parameters["image_width"].GetInt(),
         };
     }
 
     const std::string detector_name;
+    const int bit_depth;
     const int image_height;
     const int image_width;
 };