continue keras core integration

.gitignore

@@ -5,10 +5,13 @@
 /training/results/*/*/*.npz
 /training/results/*/*/scaler*.npz
 /training/results/*/*/*.pickle
+/training/results/*/*/*.png
+/training/results/*/*/scaler_*
 /training_core/results/*/*/*.npz
 /training_core/results/*/*/scaler*.npz
 /training_core/results/*/*/*.keras
 /training_core/results/*/*/*.pickle
+/training_core/results/*/*/*.png
 /develop/
 build
 dist
@@ -27,8 +30,6 @@ kgcnn.egg-info
 /notebooks/gcn_explain_*.png
 /notebooks/.ipynb_checkpoints
 /notebooks/graph_explanation/.ipynb_checkpoints
-/training/results/*/*/*.png
-/training/results/*/*/scaler_*
 /notebooks/docs/.ipynb_checkpoints/
 /notebooks/docs/Example.kgcnn.pickle
 /docs/source/.ipynb_checkpoints/