[Feature Request]: Support cling/clang-repl Value equivalent through CppInterop

[anutosh491]

Description of new feature

This would be required by xeus-cpp for rich mime type rendering, and plugging the system present in xeus-cling (magics, xwidgets etc)

Check jupyter-xeus/xeus-cling#115 and these use cases https://github.com/jupyter-xeus/xwidgets/blob/3fe6a48ef99bd81ab41990f4cdfee99eee0ba73c/widgets.gif

[github-actions]

This issue is stale because it has been open for 90 days with no activity.