Added a new UserController class.

modules/users/user_controller.cpp

@@ -0,0 +1,25 @@
+#include "user_controller.h"
+
+#include "user.h"
+
+UserController *UserController::get_singleton() {
+	return _self;
+}
+
+UserController::UserController() :
+		Object() {
+
+	if (_self) {
+		printf("UserController::UserController(): Error! self is not null!/n");
+	}
+
+	_self = this;
+}
+
+UserController::~UserController() {
+	if (_self == this) {
+		_self = nullptr;
+	}
+}
+
+UserController *UserController::_self = nullptr;

modules/users/user_controller.h

@@ -0,0 +1,21 @@
+#ifndef USER_CONTROLLER_H
+#define USER_CONTROLLER_H
+
+#include "core/object.h"
+
+#include <string>
+
+class User;
+
+class UserController : public Object {
+public:
+	static UserController *get_singleton();
+
+	UserController();
+	~UserController();
+
+protected:
+	static UserController *_self;
+};
+
+#endif