Moved Selectable Bounds to infantry default and tweaked them to better
match art size.
Gave Viceroids their own default. They don't share cells anymore, either.
Fixed JumJet voice.
Disabled RevealsShroud on Tiberian Fiend.
Cleaned up TakeCover definitions.
Tweaked selection bounds of TS cyborgs.
Changed TS engineer trait order to fix prone animations not showing up.