Fix for NH-3119: The ReflectionOptimizer is never used when a component is instantiated.
Also set the InstantiationOptimizer on the deserialized PocoInstantiator and don't keep the optimizer after deserialization if custom accessors are used.
Document breaking change for NH-3119 and also fix PocoEntityTuplizer deserialization.
Merge branch 'cremor-NH-3119'