Added support for 6 button controllers that do not have a MODE button on the shoulder.

At the very beginning of the code there is one directive:

#define NOMODEKEY

if the line with such directive is not commented the code generated will allow the 6 button controller to use the button C as a modifier, behaving exactly like the 3 button controller. In that case the keys X,Y,Z will still be mapped to '*', '0', and '#' respectively.