Versioning

[Yelnats321]

Versioning has been a little lacking. There is only one release (v1.0) even though in reality there have been other releases (minor and patches, and also a couple breaking ones). Adding entity grouping will be technically a release of v.2.0.0 and then afterwards I will try to follow semantic versioning as best as I can. The git will still have commits that don't necessarily correlate to a version, but when I feel satisfied with a feature I will bump up the minor version, for bug fixes the patch version, and also for breaking changes the major. I don't foresee many breaking changes with the current feature set, but that may of course change.