boat physic

this mod allows you to manage boat skidding on packed ice/blue ice

# How to use :

/slip 0.0 -> vanilla behavior
/slip 0.05 -> slightly reduced drift
/slip 0.5-0.6 -> strongly reduced drift (basically the boat act like a very fast horse)

# Do i need to install on client or server ?

the mod is client side for singleplayer and only needed serverside for multiplayer