Request: Add ability to export symbols

[shaneparsons]

Having the ability to export symbols (without having them on the stage) would be absolutely amazing.

I imagine an exportSymbol() function would be pretty similar to the exportLayer() function.

I have a hacky ass script I built for an older version of Illustrator (it doesn't work well since dynamic symbols were introduced) – I doubt it would help at all, but you never know.

https://gist.github.com/shaneparsons/fffd6bc6f8e80f84a381