Feature/element data classes+id+dataclasses#611

FBumann wants to merge 29 commits into

feature/element-data-classes+idflixOpt/flixopt:feature/element-data-classes+idfrom

feature/element-data-classes+id+dataclassesflixOpt/flixopt:feature/element-data-classes+id+dataclassesCopy head branch name to clipboard