Do not serialize unnecessary members in SessionFactory

[bahusoid]

SessionFactory IObjectReference.GetRealObject uses only 2 properties name and uuid:

nhibernate-core/src/NHibernate/Impl/SessionFactoryImpl.cs

Lines 487 to 492 in 05da46b

	ISessionFactory result = SessionFactoryObjectFactory.GetInstance(uuid);
	if (result == null)
	{
	// if we were deserialized into a different AppDomain, look for an instance with the
	// same name.
	result = SessionFactoryObjectFactory.GetNamedInstance(name);

So all other properties are serialized/deserialized for nothing (queryPlanCache I believe might be heavy)