Refactor how GUI accesses the API

Turn ServerPackCreator into fully fledged API, so Swing GUI and Quasar frontend can safely be separated from it

changed milestone to %Version 3 - Webservice

added Refactor label

assigned to @Griefed

marked this issue as related to #67 (closed)

removed milestone %Version 3 - Webservice

changed milestone to %Version 3.x - Enhance!

Still need to check whether the GUI holds actual logic which should be in the backend.

changed milestone to %Version 5 - Peauty!!11!

closed