OpenBoatUtils

two quick changes i wanted to get out before 0.5 because 0.5 is mostly api improvements and refactors and i didn't want these changes waiting on that.

• renamed DEFAULT_BLUE_ICE so DEFAULT_NINE_EIGHT_FIVE to reflect it's incorrect friction value. the mode with that ID is still exactly the same but anything relying on the names (singleplayer commands) may break. there is a new DEFAULT_BLUE_ICE mode with the correct values.
• added a setting to change boat interpolation steps to 10. this is a bandaid fix for some of the janky boat sync in 1.21.3 but its not entirely clear exactly what effect this has across versions. use this carefully.

the interpolation setting is a newer type of setting which isn't in the same context as boat-related settings are (it is a patch that effects all boats, rather than the boat the client is riding). the reset packet WILL NOT reset it, that only happens when the client initially joins a server or when you manually set it to false. this will improve in 0.5 when the apis for settings contexts are in place but they will take a while to complete and they aren't necessary for releasing this feature.

the mixins introduced here make the 1.20.1 build no longer work on 1.20.4 so i need to figure out what version that function changed in and separate it into two builds. if you are looking for the 1.20.1 build that is why it is not here yet.