This fixes a crash when trying to open the advanced input config dialog on the wiimote extensions. The device_cbox wasn't initialised and it should have been with the wiimote one.
Hotkeys
Make a new class that inherits from InputConfigDialog with a specialised constructor. The changes are mainly the top portion and it now uses tabs to categorise the hotkeys.
Redo the GCPad configuration dialog
The layout is similar, but it now allows flexibility to change it more easily.
Redo the GC Keyboard configuration dialog
Same layout.
Redo completely the Wiimote configuration dialog
Separated the controls into 2 tabs to make them less imposing overall.
Redo the Nunchuk configuration dialog
Similar layout, except for 2 control group sizers.
Redo the Classic controller configuration dialog
Same layout.
Redo the Guitar input configuration dialog
Stacked 2 sets of group together.
Redo the Turntable configuration dialog
More stacked groups and the window is much less wide.
