Add new testing tools to the list :test_tube:

[ZoranPandovski]

Before adding a new testing tool, please follow the contributing guide:

• [ ] Search previous suggestions before making a new one, as yours may be a duplicate.
• [ ] Make an individual pull request for each suggestion.
• [ ] Chose the corresponding section.
• [ ] New categories or improvements to the existing categorization are welcome.
• [ ] Research if the tool you're including is actually awesome and useful. Thanks :female_detective: :male_detective: