OpenBoatUtils

a fix and a feature:

• movement checks are now more properly disabled in singleplayer, you wont get your logs spammed with "moved wrongly" and "moved too quickly" anymore.
• air stepping allows the boat to step even if it collides against a block in the air, which removes some of the jank present when driving on curved and sloped surfaces ("boatutils walltaps"). See the packet api for how to enable this.

both are contributed by @microwavedram