settings: Add users and current_user settings and remove username

src/core/settings.h

@@ -8,6 +8,7 @@
 #include <atomic>
 #include <string>
 #include "common/common_types.h"
+#include "core/hle/service/acc/profile_manager.h"
 
 namespace Settings {
 
@@ -114,7 +115,8 @@ struct Values {
     // System
     bool use_docked_mode;
     bool enable_nfc;
-    std::string username;
+    int current_user;
+    std::vector<std::pair<std::string, Service::Account::UUID>> users;
     int language_index;
 
     // Controls