Add Jupyter-Lite xeus-cpp demo to CppInterOp

[mcbarton]

Description

Please include a summary of changes, motivation and context for this PR.

@anutosh491 @vgvassilev This PR should add a Jupyter Lite xeus-cpp demo to CppInterOp. We can use it to demo CppInterOps capability, and can also use it to determine when we have a working emscripten version.

Fixes # (issue)

Type of change

Please tick all options which are relevant.

• Bug fix
• New feature
• Requires documentation updates

Testing

Please describe the test(s) that you added and ran to verify your changes.

Checklist

• I have read the contribution guide recently

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 76.15%. Comparing base (1c3f884) to head (384f7f9).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #380   +/-   ##
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  Coverage   76.15%   76.15%           
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  Files           8        8           
  Lines        3137     3137           
=======================================
  Hits         2389     2389           
  Misses        748      748           

[anutosh491]

I shall get back with some reviews on Monday!