temporarily add bezier through mode config

This is just to test whether it breaks stuff in addition to fixing  #5087

I need people to test whether enabling this breaks other games that use Bezier Splines.

The issue is that not enabling it transforms the Bezier Splines with the Matricies and that transforms it out of screen for some like Toaru Kagaku no Railgun. I'm presuming this didn't break more games because they usually clean their matricies.

PLEASE DON'T MERGE YET, we really don't need more config options