Set the nice name of all the separator attributes to "Separator"
Set the nice name of all the separator attributes to "Separator"

This allows us to detect them reliably in the attribute editor.

sideeffects/HoudiniEngineForMaya,sideeffects/HoudiniEngineForMaya,pokyfudywise/HoudiniEngineForMaya,sonictk/HoudiniEngineForMaya,pokyfudywise/HoudiniEngineForMaya,sonictk/HoudiniEngineForMaya,sideeffects/HoudiniEngineForMaya,sonictk/HoudiniEngineForMaya,pokyfudywise/HoudiniEngineForMaya