No link between IPDC/LPDC and PublicService

[jitsedc]

Currently there is no link between both IPDC and LPDC while they are clearly subclasses of PublicService as defined in OSLO-Dienst and CPSV-AP. Is there a reason for this? I believe it is vital to have this parent class added.

In application profiles it makes sense to use PublicService, however because there is no link to what is used in IPDC/LPDC, I would need to refer to those two implementation-oriented classes instead in order to have things work for OSLO-Overlijdensaangifte.