Obtain the ORB stream copier factory. Note that this version behaves differently
than the others: each ObjectCopier produced by the factory only preserves aliasing
within a single call to copy. The others copiers all preserve aliasing across
all calls to copy (on the same ObjectCopier instance).
Create a fallback copier factory from the two ObjectCopierFactory
arguments. This copier makes an ObjectCopierFactory that creates
instances of a fallback copier that first tries an ObjectCopier
created from f1, then tries one created from f2, if the first
throws a ReflectiveCopyException.