1.4.0

• Fix DDP (on 2 RTXA4000 Ada, runtime compared to a single RTX 4090 is decreased by at least $25 %$.
• Use hydra both as orchestration tool and for setting up the logs.
• Remove setup of manual logging, now that hydra is used.
• Simplify calculation of losses, use as loss summed categorical cross entropy and then take mean for backprop.