Define autogenerated slugs on collection config

[creative-andrew]

I have found myself adding slugs to most of my collections in Payload.

I normally follow the same procedure as the one defined here: https://github.com/payloadcms/website-cms/blob/main/src/fields/slug.ts

So I wonder if this use is so extended that it could be worth enabling optionally it in the config.

In WordPress, if am not mistaken slugs are automatically generated to have a certain type of identifier different than the ID.

The autogenerated slugs could prove beneficial also while filtering by related collections in GraphQL
See: #2672

### Discussion

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