Ifdef'd code for potential skinning speed up to avoid lots of int<->float conversions (expensive and static for min space investment)
as updating rigged VBs shows up as a profiling bottleneck for Low rendering (where we actually use CPU skinning).

Provide method of storing joint indices sep from weight data for faster runtime processing.

MAINT-8104 - make pausing of wireframe updates a little smarter - waits for a couple of frames to make sure state is current before starting to skip LLRiggedVolume::update()

SL-697 - global scale function for LLControlAvatar, to support arbitrary scaling of animated objects. Not currently used.

MAINT-7466 - added more verbose logging of animation issues found by the viewer, including invalid joints. Flag the asset id now.

SL-524 - resetSkeleton() now includes collision volume joint positions. Also removed no-longer-needed LLJoint::mId field

MAINT-6631 - reluctantly, added support for animation of collision volumes, to avoid breaking existing content.

SL-242 - more tweaks around alt eyes and wings. Alt eyes are now parented to face root, and alt eyes animate along with the original eyes inside the LLHeadRotMotion code.

MAINT-6380, SL-399 - vertical flicker related to joint offsets for mPelvis. Having a joint offset for mPelvis is still a bad idea, but it won't cause as much flickering now.

SL-395 - support scale overrides (currently no way to get these into a dae, so the actual scale values are fabricated at run-time based on the joint name)