Added Moko Resources

[JacquesSmuts]

📑 What does this PR do?

This PR adds Moko Resources to the repo, as well as a small sample to showcase its use.

This includes;

• Accessing a string with possible localization
• Accessing an image file by name, with fallback image
• Accessing a color, with potential theming (this probably won't be used?)
• Accessing a .json file for mocking network test responses

✅ Checklist

• [ ] My pull request adheres to the code style of this project
• [ ] My code requires changes to the documentation
• [ ] I have updated the documentation as required
• [x] All the tests (that I touched) have passed

🧪 How can this PR been tested?

The tests I added should indicate that things are working to some degree, at least for the API tests, but I did not add a test to check the contents of the resource being accessed. Please let me know if you need me to do that.

🧾 Tasks Remaining: (List of tasks remaining to be implemented)

I don't have a MacBook and we don't have a ci up yet, so someone will please have to help make sure it works for iOS/mac.

I would just like feedback on this, please :)