New Wiimote Plugin: buildfix and minor tweak.
New Wiimote Plugin: Added a real wiimote «Pair Up» button on Windows for the Microsoft bluetooth stack, like the old plugin. The PairUp function was copied from the old plugin and cleaned up. (Mostly untested because I’m not using the MS stack) Please test. Other minor changes to emu-wiimote and DInput. (Perhaps the «Refresh» button should call PairUp() followed by Refresh() to make the dialog simpler.)