[Fix] eFFORT restructuring
Markus merged and deleted the max_dev
branch and then went on to change the structure of this package
https://gitlab.ekp.kit.edu/mapr/eFFORT/commit/eb1a16107b75a9d6e590beb9b50c1262ec9a514b
With this change we can use his new master, while still being backwards compatible to people using the now-eleted max_dev
branch.