add plural config make developer able to select the default collection name

[wasdee]

I want to reach out the author of repo and check his opinion about a new feature.

currently

this lib will use the lowercase class name as the default name in mongodb

class User(Model):
    name: str

Save this with engine and it will generate the collection user in mongodb

I also know that the lib provide a way to set custom collection name.

propose

I want a lazy solution to just turn my class name into plural nouns and use that.

I want instead of user, I would like to go by the users without me need to specify all custom names by myself.

I know there is workaround, but i think it is nice to have this as a lib option directly.

There are many choices of interfaces that could potentially be, for example

class CapitalCity(PluralMixins, Model):
    pass

class CapitalCity(ModelWithPluralName):
    pass

engine = AIOEngine(use_plural_collection_name=True)

I trusts in the pythonic instrict of author. so, I'm waiting for reply.

how to implement

Maybe we can use this lib to help in plural conversion https://pypi.org/project/inflect/

I could do a PR.