Add support for rich display of Python objects in ScalaPy

[kiendang]

Demo here

https://nbviewer.jupyter.org/github/kiendang/examples/blob/645332825d02aa244506b116867e38f7597beca6/notebooks/scalapy/scalapy_rich_display.ipynb

[review-notebook-app[bot]]

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[kiendang]

So the scripts/validate-examples.sh script fails for the scalapy display example. On my local machine the script also fails but when I run the notebook normally it works fine. It fails here

https://github.com/shadaj/scalapy/blob/6e4f09dbed07ea5bf55f2cd086c7929276c08b8b/core/jvm/src/main/scala/me/shadaj/scalapy/interpreter/CPythonAPI.scala#L20

java.lang.NoClassDefFoundError: Could not initialize class com.sun.jna.Native

Is there anything with the script that makes JNA not work? Googling suggests it's because tmp dir mounted with noexec but I don't really know what that means/whether it's correct.

[kiendang]

Superseded by #854.