Add support for Pandas-style json_normalize() functionality

[MattLJoslin]

trafficstars

Is your feature request related to a problem? Please describe. I needed to construct DataFrames from complex nested JSON values containing nested arrays. Coming from python I was used to the pandas json_normalize function and wanted to use the same here.

Describe the solution you'd like Currently I've translated the python source code for now in my own private project but I would like to put this back into the main project to help ensure forward compatibility. If interested, I'll create a PR in the next few weeks after we work the bugs out.

Describe alternatives you've considered Keeping this code in local or doing normalization on the backend.

Additional context Love this project :)

[steveoni]

That's cool @MattLJoslin you can go-ahead