Migrate nonlocal games #1596 task1 classical

[ggridin]

The link to the issue: #1596

This pull requests is covering

1. inital folder structure for nonlocal_games
2. CHSH classical tasks (1.1 and 1.2/3)

Other PRs will follow after this commit.

Details of this PR:

Context is (mostly) copied from previous version QuantumKatas.

1. index.md for nonlocal_games is added.
   • Brief overview for nonlocal games is new.
2. chsh_classical_win_condition (task 1.1) is added.
   • index.md: Reference to Q# samples is rephrased to point to this the kata (reference implementation will be added in next quantum PR).
3. chsh_classical_strategy (combined tasks 1.2 1.3) is added.
4. Conclusion section sentence is new.

Testing done:
0. Build "python ./build.py --npm" is successful

1. Placeholder cases are syntactically correct but failing verifications.
2. Solutions are successful.
3. Some other failure scenarios were tested manually.
4. Content screenshots are attached.
   
   
   

[Manvi-Agrawal]

Looks good overall. I some comments, mostly nitpicks with one major change to remove the current kata from index.json list. We add it once kata is ready to publish :-)

[tcNickolas]

Thank you for your patience with my review!
Looks good overall! I didn't realize that we can just have two functions in the task without any issues. This used to not be the case in the Jupyter notebook version of the katas, so I didn't even think about that in the modern katas - I'm glad you discovered that rather than do my proposed tuples approach!

I left some comments, formatting and phrasing.

Thank you!

[tcNickolas]

Looks great! Just one tiny formatting suggestion I missed on the previous iteration. (And the two comments from the previous iteration, I missed that they're not resolved yet)

Thank you!