Configurable Lookup Field for ModelControllerBase

[tareksanger]

Description:

Summary:
Currently, the ModelControllerBase class in Django Ninja Extra only supports the primary key as the lookup field, which limits flexibility when working with models that might require alternative lookup fields. I would like to request the addition of a feature that allows the lookup field to be configurable.

Use Case:
In some applications, it is necessary to use a field other than the primary key for lookups, such as a UUID or a slug. Allowing developers to configure the lookup field would enhance the versatility of ModelControllerBase and align it with the flexibility provided by Django’s built-in views and routers.