temp commit 2
JANITORIAL: Remove some commented code
EMI: Add Skeleton::{getParentJoint,getJointIndex}
EMI: Only update components for playing chores
EMI: Move skeletal animation to AnimationEmi
EMI: Implement Lua_V2::AdvanceChore
Revert "EMI: Enable GL_BLEND when drawing EMI-model-faces"

This reverts commit 5769dffca20e384ee51fa92323d01124933495f7.