Fix "ModuleNotFound" error on MacOS, add .gitignore

[ef1rspb]

In this PR I've added requirements.txt file with all dependencies, that can be installed pip3 install -r ./requirements.txt
Update images in Tutorial folder (generated)

cd Whole_Process
python3 WholeProcess.py

Successful output:

Closes #1

[LittleCoinCoin]

Hello @ef1rspb
Thank you for taking the time to do the PR. I have questions, though.

1- Can you motivate your preference of sys.path.append(os.path.abspath(***)) over os.chdir(***))? I am not a fan of adding a path when we only need it for import at the beginning. I don't see why sys.path should be polluted with that.

2- As far as I remember (because It's been some time already), I didn't chose to ignore the Tutorial folder despite having to store the images to make sure that anyone could run the tutorial without using the synthetic images. But I do acknowledge that you had issues with pulling them. I'll need to retry on a fresh clone to see how it behaves on my side.

3- Why did you feel the need to add the function listdir_nohidden?

4- Thank you for the requirements.txt 👍

[ef1rspb]

1- on MacOS os.chdir(../folder) switches to folder, but still can't import module
on Release branch:

  File "/Users/amalina/Documents/Plant_Counting/Whole_Process/WholeProcess.py", line 10, in <module>
    import Process_image_for_FT as PiFT
ModuleNotFoundError: No module named 'Process_image_for_FT'

Stackoverflow topic
2- agree, I'll revert .gitignore
3- on MacOS hidden file .DS_store is created in any directory, thus I got an error with image processing
4- great project! thank you
5- can you explain, what should I do to visualise MetaSimulationResults_v16_*.json + /rgb_*NestedPositions.json ?

[LittleCoinCoin]

1- Thank you for the follow up. You can leave it like that
3- Can I ask you comment quickly to explain this is to cover MacOs
5- Sure! But can you open a new issue for that? (And it's getting late in my timezone so I will answer tomorrow)

Thank you again for the PR!