Yotam playg 39 refine logging

[yotam-yakovw]

Added a logger.py file containing logic for setting up a logger instance for use in any file Used this logic for 4 files: app.py, main_flow.py, caching_manager.py, training_extractor.py

[smartFreshBear]

oh I see now u got some conflict, solve them and re-review

[yotam-yakovw]

I can't find conflicts can you check again please? I believe there were some conflicts but they were already fixed by the time of your review