Cloning Rewrite WiP
#ADD: Introduced CloneFlags.
#ADD: Specified interfaces ICloneExplicit, ICloneTargetSetup and ICloneOperation for explicit cloning.
#REMOVE: Removed explicit cloning from all physics Joint- and ShapeInfos.
#REMOVE: Removed explicit cloning from some other objects as well.
Cloning Rewrite WiP
#CHANGE: CloneFieldFlags are now distinct from CloneBehavior, and specifically aimed at Fields.
Cloning Rewrite WiP
#ADD: Added ICloneExplicit support and updated the interface definition to fit use cases better.
#CHANGE: Moved all CloneProviderTest helper classes to their own namespace and distinct files.