Create test notebooks for the essential packages utilized in respective notebooks

[atheo89]

Should be created for the following notebooks (Example may be found on the linked document):

• Minimal
• Standard Data Science
• Pytorch
• TensorFlow
• TrustyAI

The contents of the test_notebook.ipynb file should be distinct for each notebook, reflecting the specific functionality being tested.

In this document described in details the test framework -> https://docs.google.com/document/d/1sctOblkWdpUrv1DzzrzK_nzMMtA44awKmCvXDVAkVXo/edit

[atheo89]

closing this since we splited in three separated issues