Rotate movement in the movement solver
Increase max slope to 60. 45 is too low.
Silence some console spam
Use a vector of skeletons to handle animation sources
Scale the accumulation root translation
Check existing skeleton sources if the current one has no animation root
Setup base_anim.nif as an initial skeleton source for biped creatures
Attempt to load the skeleton source if it doesn't yet exist
Load extra animations for NPCs
Better fix some scaling issues