LURE: Use the mouse pointer for menus on the Wii

Without this, this game is almost unplayable, since the
scrolling menus respond to the slightest tilt of the
Wiimote, typically scrolling from the top straight to the
bottom.  Using a mouse pointer in the menus is much easier.
Merge pull request #447 from damien-hackadl/master

LURE: Use the mouse pointer for menus on the Wii