Create a script that creates a versioned release of the UI packaged in a .war-file, that can be served by the Marathon backend.
1. 'npm run release'
2. Version number should be retrieved from the package.json version key
3. dist/ files should be created from the related Git Tag (version)
4. Creates a
.war.jar-file with the contents of the dist-folder (main., img/, index.html)
.war.jar should be in the repository in an own release-folder