JPALazyDataModel: add resultEnricher callback

[rider87]

Description

Since the Constructor has been removed in PF14 R3 (#11754), the Post Process is not working anymore.

Can you add the possibility to add e.g. a function which allows to "manipulate" the results from the Lazy Loading result afterwards (e.g. fill some addiotional columns etc.)

Please see also discussion in Discord:
https://discord.com/channels/787967399105134612/787967662293909524/1230050675757547562

Describe the solution you would like

To have a function for Post Progress...

Additional context

No response

[kuhhpid]

Great response time :-) thx