Support .arrow data files

[RandomFractals]

Example: https://github.com/RandomFractals/vscode-data-preview/tree/master/data/arrow

Apache Arrow ecosystem page: https://arrow.apache.org/powered_by/

Sample preview of that arrow data file:

would be nice to view it via flatgithub url.

Thanks!

[RandomFractals]

You can find more info about arrow data format and maybe even use Arquero lib to do some of the loading and parsing for you:

https://github.com/uwdata/arquero

Many data scientists are using it now on ObservableHQ. cc: @jheer :wink: