Smooth Minecarts

Reduced the default smoothing factor. Added new gamerules to change the smoothing factor: ### smoothMinecartsSamplingDistance - Default value: `6` - Recommended value: `6 ~ 30` - Minimum value: `0` The mod samples a set number of rails ahead of the minecart, and averages its distance to each rail. This gamerule modifies the number of blocks to sample. You should change this according to how tight your curved track layout is. ### smoothMinecartsStraightnessPrecheckDistance - Default value: `3` - Recommended value: `smoothMinecartsSamplingDistance / 2` - Minimum value: `0` The mod corrects the direction if it thinks the minecart will derail. This gamerule modifies how many blocks ahead are checked for derailment prevention.