updated configs and run files

Changing config files to use SGD instead of Adams. Adding script that runs tests 5 times for different seeds. Added 200 seconds sleep in between rounds.

eval/step_configs/config_CIFAR_topk.ini

@@ -34,3 +34,4 @@ sharing_package = decentralizepy.sharing.PartialModel
 sharing_class = PartialModel
 alpha = 0.5
 accumulation = True
+accumulate_averaging_changes = True