Fix json key automatic ordering error when creating Score from json

src/results/Result.h

@@ -9,7 +9,7 @@
 #include "main/PartialResult.h"
 
 namespace platform {
-    using json = nlohmann::json;
+    using json = nlohmann::ordered_json;
 
     class Result {
     public:

src/results/ResultsDataset.h

@@ -5,7 +5,7 @@
 #include <nlohmann/json.hpp>
 #include "results/Result.h"
 namespace platform {
-    using json = nlohmann::json;
+    using json = nlohmann::ordered_json;
     class ResultsDataset {
     public:
         ResultsDataset(const std::string& dataset, const std::string& model, const std::string& score);

src/results/ResultsDatasetExcel.h

@@ -3,7 +3,7 @@
 #include <nlohmann/json.hpp>
 #include "reports/ExcelFile.h"
 
-using json = nlohmann::json;
+using json = nlohmann::ordered_json;
 
 namespace platform {