EXP-625 Speed up initial outfit copy and avatar bake by moving initial gesture copy to LLAppearangeMgr::onFirstFullyVisible().

EXP-625 Subtle change to get the initial avatar on the screen a little faster, then get to the gestures.

EXP-625 No longer stuck as a cloud on initial login by fixing logic around fetching library items from the Inventory capabilities.

Changed covenant and debug panes per Oz's request.
Covenant is taller; Restart buttons are moved to the right.