speedbug fix
Fix the annoying bug that a player turns to the right when going too fast.
Talking with Ashnal in #hardcode he said what was the origin of the bug.
A simple fix that solve the problem. I tested with community maps that have sections of the track where player goes too fast to see if nothing wrong happens, the results are positive.
And tested in other scenarios, like mobjscaled maps and speed pads that are too strong, tested changing k_speedboost and k_accelboost to high values.
mobjscale set at FRACUNIT*50/100
mobjscale set at FRACUNIT*150/100
and the speed pad.
with a ramp right after the speed pad, to test if everything go as intended midair too.