rename examples to test_examples

[aniketmaurya]

Before submitting

• Was this discussed/agreed via a Github issue? (no need for typos and docs improvements)
• Did you read the contributor guideline, Pull Request section?
• Did you make sure to update the docs?
• Did you write any new necessary tests?

⚠️ How does this PR impact the user? ⚠️

No direct impact, as this module is supposed to be used only for testing purposes.

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What does this PR do?

Fixes # (issue).

litserver.examples contains examples used during tests. This renames the folder to test_examples

PR review

Anyone in the community is free to review the PR once the tests have passed.
If we didn't discuss your PR in GitHub issues there's a high chance it will not be merged.

Did you have fun?

Make sure you had fun coding 🙃

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92%. Comparing base (f2f70ea) to head (2665aa1).
Report is 1 commits behind head on main.

Additional details and impacted files

@@         Coverage Diff         @@
##           main   #255   +/-   ##
===================================
  Coverage    92%    92%           
===================================
  Files        14     14           
  Lines      1082   1082           
===================================
  Hits        992    992           
  Misses       90     90