Introduced DeprecatedDynamicDataObjectHandle

This transitional class will help moving all code to Handles even if some usage requires 'dynamic' behavior, i.e. to declare handles at run time only and not registering them with their owner.

Again should no be used for long term code, only for helping in the transition. It is bound to be marked Deprecated and then dropped as the name explicitely says.

Note that it needed a new constructor in the DataObjectHandleBase but that one is directly marked deprecated and used only in the new class where the deprecation warning is ignored