Added default, current, and save config slots to the input plugin.
Currently only GC controllers work. Classic and WM+NC needs to be updated.
The menu layouts need a lot of tweaking, but I wanted to update SVN in case tehpola works on Classic/WM+NC code.
Implemented Native Saves and Save States.
Added wii64config.h header containing config variables and enumerations.
Improved Menu layouts and features.
main/savestates_gc.c needs to be revised so that we can use the selected savestate location (i.e. SD/USB)