A quick hotfix for avatars with custom LocomotionAnimationConfiguration.

Compatible with current build! Though update is recommended if you want the parameters fixed. You can also fill them out manually to fix this.

Fixes:

- Fix existing instances of LocomotionAnimationConfiguration values not getting updated with new values (based on report by @jackthefoxotter, issue #2972)
-- This should fix the animation breaking randomly
-- This also fixes the standing still animations not working right on avatars with custom animation configuration due to all the parameters being 0
-- If you've already re-saved your avatar after the previous update, you'll need to fill out the "Standing Still" parameter section manually - you can just copy values from another instance