Add multithreading for tests

[NS4nti]

✨ Pull Request Template

‼️ Once all the checklist is done you have to:

• stash merge this pull request
• delete the corresponding branch
• close the associated issue

📃 Type of change

New feature: non-breaking change which adds functionality.

💡 Related Issue(s)

• Resolve [IDEA] Multithread Test #120

✒️ Description

Add multi threading for tests. Tests now run in parallel, for a better time optimization.

🎯 Test Environments

Ubuntu 19.04

• Python 3

✔️ Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

• 🙋 I certify on my honor that all the information provided is true, and I've done all I can to deliver a high quality code

[NS4nti]

Care bout log in the same file, we don't know who log it

[NS4nti]

Care bout log in the same file, we don't know who log it

Uniformed logs added

[HugoSoszynski]

Closing because branch is obsolete