[OPTION] Hide the HUD on start

[Miguel]

Now that the 1.8.0 version can display its HUD on Logitech G1x keyboards, having an option not to show the HUD in games and DirectX apps right from the start would be nice.

For now we have to find a DirectX app that show the HUD and press a key to hide it, but it comes back in games and some apps.

[radi]

Thanks for the suggestion. We will consider it while making next updates.