chore: release 5.0.0

[github-actions]

🚀 5.0.0

Make sure to use squash & merge when merging!
Once this is merged, another job will kick off automatically and publish the package.

📝 Changelog

5.0.0 (2022-02-28)

Features

• In v5.0.0, we have refactored the library to be more maintainable in the future.
  Most importantly, we got rid of some complex internal logic (such as tricky json serialization and deserialization, code organization improvements etc.).
  Also, we made the library more modern such as adding Async postfix to async methods. All public
  methods have documentation now and a link to the official docs now. This README file's code snippets are updated to reflect the new changes.

🚨 Breaking changes:

• All async methods have Async postfix.
• Model classes have been moved into Stream.Models namespace.
• All client classes have interfaces now, and Ref() methods are not static anymore. This will make it easier to the consumers of this library to unit test them.