ClonesProductionUnits:
	string[] CloneableTypes	checks Cloneable.Types

Cloneable:
	string[] Types checked by ClonesProductionUnits.CloneableTypes

Added INotifyOtherProduction
	for notifying self when another actor
	produces a unit.
Merge pull request #5910 from Phrohdoh/CloningVats

Added cloning trait pair for RA2-style Cloning Vats.