Round out `acceleration` variable from -+0.025 to 0 in order to mitigate negative-positive jumping

This freakin' thing has made me lose my mind for the LAST time. No longer will I concede with making the translation or rotation guided by this variable smaller, nor hath I the patience to find just the right amount to dampen this variable by. This god-forsaken value jumping padded by more 0's than π itself ends here, acceleration variable! I win!!

tl;dr Rounding the acceleration so it doesn't constantly switch between positive and negative values, which doesn't play well with most uses for this variable

DonBruce64 / MinecraftTransportSimulator

Round out `acceleration` variable from -+0.025 to 0 in order to mitigate negative-positive jumping #1634