Adds extra space between the portal and the vehicle if the destination portal is always on
Fixes a bug causing vehicles not being detected soon enough
Fixes boats facing into the portal rather than out from the portal
Fixes boats spawning inside water rather than on top of it if water is in front of a portal
Accounts for size when blocking an entity near a portal from teleporting to the nether
Ignores boats and minecarts when teleporting a vehicle after the player
Makes it easy to get a portal by adjacent entrance for any given range