scala-cli import

[KristianAN]

Scala-cli has a way to export the build definition as json which we could parse and use to import. Because scala-cli only supports single module builds it should be fairly trivial to do. We could also just hook into the sbt-export of scala-cli and use the preexisting sbt importer, which would be a lot slower. If this matters for a one time operation I don't know.

Adding support for this would give possibility for a really nice on-boarding for new Scala devs in the future I think.

[KristianAN]

It might also be easier to do this on the scala-cli side of things, and just add exporting to bleep there, because bleep has a jsonschema definition for the build scala-cli could just generate code for the build definiton, fill in the blanks and export the yaml file. Exporting from scala-cli also has the benefit of more exposure for bleep