[Feature request] Option to auto-hide overlay when a gamepad is detected

[sephore]

Mostly useful for smartphone/tablet users that are always alternating between touch controls and gamepads. This way, on-screen controls can be set by default, but these will be disabled if a gamepad is detected, without requiring manual intervention.

[Zephyr-Battiassi]

I suffer of this too, so bump!.

[andreyorst]

And when one says disabled, I believe everyone means disabled. Not hidden with the use of the hide button that is available in most overlays.

[hizzlekizzle]

This has been implemented (for a while now), so I think we can close this one out. @sephore , would you mind doing the honor?