feat(cloud_firestore_odm): add support for specifying class name prefix

[Rexios80]

Description

Allows developers to specify the name prefix used for generated classes. This allows for reusing the same data class in multiple sub collections on the same parent collection.

Related Issues

#9452

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[rrousselGit]

I think another important thing to do for #9452 is to throw an error if the same Model is used on multiple collections. Could you add that?

[rrousselGit]

Outside of error handling, LGTM

[Rexios80]

I think another important thing to do for #9452 is to throw an error if the same Model is used on multiple collections. Could you add that?

I'm not sure what you mean. Do you mean throw an exception if the same model is used on multiple root collections?

[rrousselGit]

Yes. If multiple @Collection annotation uses the same generics, it should throw (root or not)

Of course, specifying the added "prefix" parameter would disable this exception

[rrousselGit]

LGTM thanks!