Implement Interactive Exporting

[OmarElabd]

The idea would be that a level-1 export would display (should be very fast), then the user would interactive select which fields they wished to explore further. this could be done by creating "code folds" in the text editor and expanding a code fold will generate the child's level-1 code.

Code, JSON or XML could be generated on the fly.

This should address performance issues of very large and complex objects (as users can interactively select the interested properties and narrow down the scope.)