separate gamepad and btn1 from touchui->hideGameControls()

[DominusExult]

The ESC button is quite useful and should maybe be separate from the gamepad when hiding. The gamepad is almost always in the way when gumps are on the screen but the ESC button is just in the way of the savegame gump.
So if they are separate it gives more control.

(I might be able to do that on my own - just adding to the list so I don't forget)

[DominusExult]

done with commit 7ea2bd0