Kaartmateriaal - add WFS layer support

[robinmolen]

Thema / Theme

Frontend

Omschrijving / Description

Adding support for custom WFS layers in the map component. Allowing more information to be provided to end-users

Added value / Toegevoegde waarde

No response

Aanvullende opmerkingen / Additional context

Todo:

• SDK: implementation Support WFS map overlays in the SDK open-forms-sdk#888
• Formio builder: selecting feature types when configuring WFS overlay
• Backend: WFS config + email digest Feature/5576 wfs map ovelays #5670