Convert DatasetsConsole & ResultsDatasetConsole to string output

src/results/ResultsDatasetConsole.h

@@ -0,0 +1,27 @@
+#pragma once
+
+#include <locale>
+#include <string>
+#include <sstream>
+#include <nlohmann/json.hpp>
+#include "results/ResultsDataset.h"
+
+namespace platform {
+    class ResultsDatasetsConsole {
+    public:
+        ResultsDatasetsConsole() = default;
+        ~ResultsDatasetsConsole() = default;
+        std::string getOutput() const { return output.str(); }
+        int getNumLines() const { return numLines; }
+        json getData() { return data; }
+        void list_results(const std::string& dataset, const std::string& score, const std::string& model);
+    private:
+        std::stringstream output;
+        json data;
+        int numLines = 0;
+    };
+}
+
+
+
+