Add registry option "Split Controllers" and optionally split joysticks
with more than 6 axes to improve compatibility with applications that
do not support more than 6 axes where on Windows a driver would be
installed that splits the device.
Signed-off-by: Timo Zuccarello <timo(a)zuccarello.eu>
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v2: winebus: Optionally split joysticks with more than 6 axes.
https://gitlab.winehq.org/wine/wine/-/merge_requests/181