www/py-fastapi-users: add port: Ready-to-use and customizable users management for FastAPI

Add quickly a registration and authentication system to your FastAPI project.
FastAPI Users is designed to be as customizable and adaptable as possible.
Features:

• Extensible base user model
• Ready-to-use register, login, reset password and verify e-mail routes
• Ready-to-use social OAuth2 login flow
• Dependency callables to inject current user in route
• Pluggable password validation
• Customizable database backend
  • SQLAlchemy async backend included thanks to encode/databases
  • MongoDB async backend included thanks to mongodb/motor
  • Tortoise ORM backend included
  • ormar backend included
• Multiple customizable authentication backends
  • JWT authentication backend included
  • Cookie authentication backend included
• Full OpenAPI schema support, even with several authentication backends

WWW: https://github.com/fastapi-users/fastapi-users

PR: 257369
Reported by: Goran Mekić <meka@tilda.center> (new maintainer)
Reviewed by: koobs