Auth subsystem done

system/auth_system.h

@@ -0,0 +1,24 @@
+#ifndef AUTH_SYSTEM_H
+#define AUTH_SYSTEM_H
+
+#include<QVector>
+
+#include <entities/user_entity.h>
+
+
+class auth_system
+{
+private:
+    QVector<user_entity> _users;
+public:
+    auth_system() = default;
+
+    const user_entity& get_user(const QString &login, bool &success);
+    bool remove_user(const QString &login);
+    bool register_user(const QString &login, const QString &password, UserRole role);
+
+    void init(QDataStream &stream);
+    void shutdown(QDataStream &stream);
+};
+
+#endif // AUTH_SYSTEM_H