Glfw joystick hat mapping (dotnet#2368)

* start of Glfw Joystick Hat mapping is not correct

* Map LeftRown to DownLeft instead of UpRight

---------

Co-authored-by: Alexander Kastler <alexander.kastler@amst.at>

Author: Spacelord-XaN

src/Input/Silk.NET.Input.Glfw/GlfwJoystick.cs

@@ -91,7 +91,7 @@ public unsafe void Update()
                         JoystickHats.RightUp => Position2D.UpRight,
                         JoystickHats.RightDown => Position2D.DownRight,
                         JoystickHats.LeftUp => Position2D.UpLeft,
-                        JoystickHats.LeftDown => Position2D.UpRight,
+                        JoystickHats.LeftDown => Position2D.DownLeft,
                         _ => Position2D.Centered
                     }
                 );