This class is a data field provider centered on the topic of property groups.
It divides its data into groups and single properties and delegates to child providers.
It is used to enable placeholders for dynamic data in the ShopBuilder's text widget.
Please refer to the parent class for more information about DataFieldProviders.
Please refer to https://developers.plentymarkets.com/dev-doc/result-fields-ceres for more information about
the data fields.
Registers item data fields for use in the ShopBuilder.