Model level scope: include is not supported in LB4

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### Describe the bug

In Loopback 3 it was possible to add a scope and include in model annotations on a model class :

`@model({
settings: {
strict: false,
scope: {
include: [
{relation: 'posts'}
]
}
})
`
If you do the same in LB4 an error is thrown that the relation cannot be found as loopback-datasource-juggler does not support LB4 includes.

I have made changes to support model level includes here:

https://github.com/SilexConsulting/loopback-next/tree/support-default-scope-include

I need some help to get this ready to submit a pull request.

### Logs

_No response_

### Additional information

_No response_

### Reproduction

https://github.com/SilexConsulting/loopback-next/tree/support-default-scope-include

Inizia esaminando il branch support-default-scope-include e la sua riproduzione nel repository LoopBack 4 collegato, concentrandoti sulle annotazioni del modello e sulla gestione degli includes da parte di loopback-datasource-juggler. Verifica che lo scope include a livello di modello non generi più un errore relation-not-found e che il comportamento riprodotto funzioni come previsto.

Scritto dal modello di indicizzazione a partire dal testo della issue.