Tags give the ability to mark specific points in history as being important
- Fixed CI_COMMIT_BRANCH and CI_COMMIT_TAG being ignored - Added support for detached HEADs - Renamed package and artifact group to dev.sgme
- Renamed to git-maven-plugin - Added metadata mojo - Handled empty Git repositories and repositories without tags - Shortened mojo names - `git-versioning` -> `version` - `git-versioning-type` -> `type`