This merge request restores `DIPROP_AUTOCENTER` support to the SDL and udev input backends. It also * adds an `Autocenter` registry app key that lets the default `DIPROP_AUTOCENTER` setting to be set on a per device and per application and device level, * logs a warning on acquisition when `DIPROP_AUTOCENTER` hasn't been checked or set that that is the case and the default can be changed via the 'Autocenter' app key if required.
Together these two should provide a robust solution for the issues some where having with autocenter being incorrectly on for some programs and devices.
-- v3: dinput: Autocenter detect joystick by DIDEVICE_TYPE instead of name