Versioning scheme is not declared

This is more a discussion than an issue, I would like to know what is the versioning scheme used by the library. For the record, I recommend declaring it in the [build definition](https://www.scala-sbt.org/1.x/docs/Publishing.html#Version+scheme), and I recommend using [Early SemVer](https://docs.scala-lang.org/overviews/core/binary-compatibility-for-library-authors.html#recommended-versioning-scheme).

You may be interested in using [sbt-version-policy](https://github.com/scalacenter/sbt-version-policy), which helps you to implement the Early SemVer scheme. I can help you to use sbt-version-policy, in case you are interested.

Relatedly, are there plans to publish a 1.0.0 version? Our projects use refined a lot and I wonder if we should expect frequent binary breaking changes in the future or not.