This reverts commit f6ba7b06.

Hide a bunch of debug logging statements in #ifdef SHOW_DEBUG to prevent spinning a mutex in hot paths.

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

[MAINT-8846] - fixing duplicate id in avatar_lad.xml fixrs character test female crash. code cleanup.

MAINT-7528 - allow underscores to substitute for spaces in uploaded meshes - this allows rigging to some attachment points that will not otherwise work

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

SL-109 - made viewer much less tolerant of bad data in avatar_skeleton.xml or avatar_lad.xml. If either of these is broken, there's no point trying to continue, more informative to just error out with an appropriate message.

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)

SL-333 work - attachment joints now get a valid mJointNum, more checking on valid joint num values. Also reduced log spam slightly.