alias holding_with_mouth -> mouth_hold

BUR #60209 is pending approval.

create alias holding_with_mouth -> mouth_hold

easier

BUR #60216 is pending approval.

create alias mouth_hold -> holding_with_mouth
create alias teeth_hold -> holding_with_teeth

Option for going the other way. Also let's solve teeth hold while we're here since teeth hold implies mouth hold

Note that there's aliases of foot hold -> holding with feet and tail hold -> holding with tail. This discrepancy should be resolved one way or another.