Added feature to retrieve song records in json format. One issue is that the json file is in one line

src/Syncers/RetrieveRecords.cpp

@@ -0,0 +1,51 @@
+#include "Syncers/RetrieveRecords.h"
+
+#include <iostream>
+#include <fstream>
+
+#include <cpr/cpr.h>
+
+using std::cout;
+using std::endl;
+using std::ofstream;
+
+using Managers::CommitManager;
+using Models::API;
+using Models::Token;
+
+namespace Syncers
+{
+
+    RetrieveRecords::RetrieveRecords() { }
+    RetrieveRecords::RetrieveRecords(API api, Token token) 
+        : token(token), api(api) { }
+
+    void RetrieveRecords::retrieve(CommitManager::RetrieveTypes type)
+    {
+        switch (type)
+        {
+            case CommitManager::RetrieveTypes::songs:
+                fetchSongs();
+                break;
+            default:
+                break;
+        }
+    }
+    void RetrieveRecords::fetchSongs()
+    {
+        cout<<"fetching songs"<<endl;
+        auto url = api.url + "api/" + api.version + "/" + "song";
+        cout<<url<<endl;
+
+        auto auth = token.tokenType;
+        auth.append(" " + token.accessToken);
+        auto r = cpr::Get(cpr::Url{url},
+             cpr::Header{{"authorization", auth},
+                 });
+
+        ofstream writeData{};
+        writeData.open("songs.json");
+        writeData<<r.text;
+        writeData.close();
+    }
+}