Function PrimitiveVariable

include/IECoreScene/PrimitiveVariable.h:77–77

It's OK to make shallow copies where the data is not copied just rereferenced, so we can use default copy and assignment

	/// It's OK to make shallow copies where the data is not copied just rereferenced,
	/// so we can use default copy and assignment
	PrimitiveVariable( const PrimitiveVariable &other ) = default;
	PrimitiveVariable & operator= ( const PrimitiveVariable &rhs ) = default;
	~PrimitiveVariable() = default;