Does not support automatic/anonymous user

[sidan5]

New Issue Checklist

• [x] I am not disclosing a vulnerability.
• [x] I am not just asking a question.
• [x] I have searched through existing issues.
• [x] I can reproduce the issue with the latest versions of Parse Server and the Parse Swift SDK.

Issue Description

On Parse iOS SDK there was an option that support automatic user, so anonymous users would be supported out of the box. With Parse-Swift it is not clear that this is possible.

Could use:

   PFUser.enableAutomaticUser()

Steps to reproduce

There is no way to set this us.

Actual Outcome

Expected Outcome

Environment

Client

• Parse Swift SDK version: 4.14.2
• Xcode version: 14.3
• Operating system (iOS, macOS, watchOS, etc.): macOS
• Operating system version: 13.3.1(a)

Server

• Parse Server version: 6.1.0
• Operating system: macOS
• Local or remote host (AWS, Azure, Google Cloud, Heroku, Digital Ocean, etc): local

Database

• System (MongoDB or Postgres): MongoDB
• Database version: 6.0.5
• Local or remote host (MongoDB Atlas, mLab, AWS, Azure, Google Cloud, etc): Atlas

Logs