Funding
Open Access funding enabled and organized by Projekt DEAL. We acknowledge support by Open Access Publishing Fund of University of Tübingen. The study was funded by the AKF Program of the University of Tübingen (Grant No 414-0-0) and by TR240 grant with project number 374031971 of the Deutsche Forschungsgemeinschaft (DFG; German Research Foundation; TP B07 to P.R, B.N. and TP B08 to V.M.). Also in parts this work was supported by grant DFG-RO 3671/8-1 to P.R and by DFG-MI 1506/4-2 to V.M. This work was also funded by German Research Foundation KFO342-1 to A.Z.